Abstract: Example rack systems that support computing platforms and related hardware are provided. Multiple instances of the example rack system may be combined to create scalable systems. The example racks may incorporate a universal backplane upon which one or more backplane boards may be mounted. Modules of varied functions may be inserted into the backplane boards via a module insertion area. The example racks may include a power bus for powering the backplane boards. The rack system may also include thermal plates, coolant transmission, and cable management solutions to promote heat dissipation. Related apparatuses and methods are also provided.

Abstract: An electronic device includes a housing, at least one expansion card, a motherboard and a fixing member. The motherboard is assembled into the housing, and includes at least one socket member. The socket member defines at least one expansion slot to receive the expansion card. The housing includes a bottom plate and a side plate extending substantially perpendicular to the bottom plate. The fixing member is rotatably connected to the side plate. The fixing member resists an end of the expansion card away from the motherboard, such that the fixing member and the motherboard cooperatively defining an airflow channel therebetween.

Abstract: A serial advanced technology attachment dual in-line memory module (SATA DIMM) includes a control chip having a first input output (I/O) pin and a second I/O pin, first and second switches, a resistor, and a number of storage chips connected to the control chip. First terminals of the first and second switches are respectively connected to the first and second I/O pins. Second terminals of the first and second switches are grounded. The first and second I/O pins receive different signals through controlling the first and second switches, to change work modes of the storage chips.

Abstract: Example embodiments include a memory module having a first volatile memory, a second volatile memory, a nonvolatile memory, and a controller configured to control an operation of the second volatile memory, and an operation of the nonvolatile memory. When first write data received from an external controller are written to the first volatile memory in a write operation, the controller receives and writes the first write data to the second volatile memory. The controller is configured to perform backup and restore operations using a buffer, the nonvolatile memory, the first volatile memory, and/or the second volatile memory. Example embodiments include a memory module having a first nonvolatile memory, a second nonvolatile memory, and a third nonvolatile memory, with corresponding backup and restore features. Example embodiments also include methods for processing the data and operating the various components of the memory system.

Abstract: An exemplary power supply system includes a plurality of adapter boards. Each adapter board is connected to a single power supply and is installed with a memory module. Each adapter board receives a first direct current (DC) voltage from the power supply and transforms the first DC voltage into a second DC voltage, and outputs the second DC voltage to the memory module.

Abstract: A computer system includes a serial advanced technology attachment dual-in-line memory module (SATA DIMM) with a circuit board, a motherboard, and an indicating unit. An edge connector is set on a bottom edge of the circuit board to engage in a memory slot of the motherboard. A SATA connector is arranged on the circuit board and connected to a storage device interface of the motherboard. The indicating unit is connected to the motherboard for indicating the data transfer rates of the SATA DIMM module through two light emitting diodes.

Abstract: A storage device including a circuit board, an electronic device package and a terminal module is provided. The circuit board has a first surface and a second surface opposite to each other, a plurality of via-holes connecting the first surface and the second surface, a plurality of first pads on the first surface, and a plurality of first pads on the second surface. The electronic device package is disposed on the first surface. The terminal module disposed on the first surface has a plurality of first and second contact parts, and each of the first contact parts passes through the corresponding via-hole and is protruded out of the second surface, and each of the second contact parts is electrically connected to the corresponding first pad. An orthogonal projection area of the electronic device package on the first surface is smaller than an area of the first surface.

Abstract: A system and method for provisioning within a system design to allow the storage and IO resources to scale with compute resources are provided.

Abstract: A motherboard assembly includes a motherboard having an expansion slot and a storage device interface, and a serial advanced technology attachment dual in-line memory module (SATA DIMM) with a circuit board. A control chip and a storage chip are arranged on the circuit board. Two voids are defined in a top side of the circuit board. A first extending board is formed on the top side of the circuit board between the voids. An edge connector is arranged on the first extending board and connected to a power supply. The edge connector includes power pins connected to the control chip and the storage chip. A second extending board is extended from an end edge of the circuit board and includes a connector connected to the storage device interface of the motherboard. A bottom side of the second extending board is in alignment with a bottom side of the circuit board.

Abstract: Various embodiments of the present invention include a semiconductor device and a fabrication method therefore, the semiconductor device including a first semiconductor chip disposed on a substrate, a first sealing resin sealing the first semiconductor chip, a built-in semiconductor device disposed on the first sealing resin, and a second sealing resin sealing the first sealing resin and the built-in semiconductor device and covering a side surface of the substrate. According to an aspect of the present invention, it is possible to provide a high-quality semiconductor device and a fabrication method therefore, in which downsizing and cost reduction can be realized.

Abstract: A server includes a chassis, a motherboard, a number of data storage devices, a number of system fans, and a power supply mounted in the chassis. The system fans generate an airflow flowing through the chassis, from a front portion of the chassis to a rear portion of the chassis. The power supply includes a power fan causing an airflow directed rearwards through the front portion of the chassis to prevent a disturbance with the airflow from the system fans.

Abstract: A mounting component for mounting an electronic part has a base that extends along a first surface of the electronic part, and a pair of left side and right side surface supporting sections that are extended from the base and bent along the right and left side surfaces of the electronic part, respectively. The pair of side surface supporting sections each have the screwing through hole at a position close to the one of the front end surface and the rear end surface. Further, a cushion member is interposed between the base and the electronic part, at a position close to the other of the front end surface and the rear end surface of the electronic part. The electronic part is screwed to the base through the surface supporting sections.

Abstract: Flexible data center systems and methods of deployment are provided. A flexible data center (100, 200) including T rows of server racks (106, 206, 306) can be deployed by constructing a number B of blocks (101, 201). Constructing each block (101, 201) can include constructing from one to a number P of perimeter structures (104, 204, 304) each housing up to a number R of rows of server racks (106, 206, 306). Constructing each block (102, 201) can include constructing a connecting structure (102, 202) connected to the perimeter structures (104, 204, 304), the connecting structure (102, 202) housing operations monitoring equipment (108, 208) for the server racks (106, 206, 306). A total integer number T/R of perimeter structures (104, 204, 304) can be constructed for the flexible data center (100, 200). At most one perimeter structure (10, 204, 304) houses less than R rows of server racks (106, 206, 306). B is equal to an integer number (T/R)/P.

Abstract: The invention provides a data storage system for connection to a primary power source, the data storage system comprising: one or more data storage media; one or more interfaces, each interface able to connect to at least one of the data storage media so as to couple power from the primary power source to the at least one of the data storage media; one or more energy modules, each energy module being able to connect to an interface for providing back-up power to the one or more of the data storage media in the event of a failure of the primary power source.

Abstract: A memory holding apparatus includes a main pole and an inserting pole. The main pole includes a main portion and a first holding portion perpendicularly extending from a first end of the main portion. A second end of the main portion defines a receiving hole extending to the first holding portion. A sidewall of the main portion defines an opening. An elastic blocking piece extends from a side bounding the opening. A hook extends from an inside wall of the blocking piece. The inserting pole includes an inserting portion and a second holding portion perpendicularly extending from a first end of the inserting portion. The inserting portion defines a groove from a second end of the inserting portion extending to the second holding portion. A number of blocks extend from a bottom of the groove. The hook is selectively engaged with one of the blocks.

Abstract: A head-mounted computing device is described. The head-mounted computing device includes a processor. Coupled to the processor is a memory for storing a software application for execution on the processor. A battery provides current to the processor. A frame supports the processor, the memory, and the battery. The frame includes a mechanical coupling feature and an electrical connector for receiving a peripheral.

Abstract: A low-profile personal computer (PC) motherboard has memory modules mounted to an edge of the motherboard rather than mounted perpendicular using standard memory module sockets. The PC motherboard has a lower profile since memory module sockets are removed from the top surface of the PC motherboard. Expansion card sockets are also removed by integrating expansion functions into chips on the PC motherboard, or using an edge-mounted connector to the expansion card or to an external peripheral. Motherboard metal contacts are formed on an extended plug region near the edge of the PC motherboard. A first opening or slot of an edge connector fits over the motherboard metal contacts, while a second opening or slot of the edge connector fits over metal contacts on a standard memory module. The memory module and the PC motherboard each have printed-circuit boards (PCBs) that are in the same plane, thus reducing the overall height.

Abstract: Various embodiments of the invention provide a function centric data system that reduces avionics system weight and power requirements. In some embodiments, the function centric data system is housed in a vibration resistant package. A variety of functions typically performed by other avionics systems are incorporated into the system, allowing centralize power and processing management, reducing weight and improving system reliability. In some embodiments, the function centric data system is configured to provide high rate data sampling, allowing ground stations to apply sophisticated failure prediction algorithms, reducing maintenance costs and mean time between flights. Embodiments include methods of wireless networking with automatic hand offs and adaptive multi-hop topologies to allow this data to be promptly transferred when the aircraft lands. Embodiments also include methods for data processing to predict imminent failures using Bayesian statistics and catastrophe prediction methods.

Abstract: A data storage apparatus includes a housing. A memory device and a data communications circuit are positioned within the housing. The data communications circuit and the link form a portion of a data channel. A source of power is also positioned within the housing to power the communications circuit and provide power for memory reads and writes. The housing is sealed. There are no external electrical contacts on the housing. The data storage apparatus fits within a receptacle during data transfer operations.

Abstract: A mounting apparatus for mounting a data storage device includes a mounting plate, first and second mounting members, and a connecting member movably connected between the first and second mounting members. The first mounting member is fixed to a side of the data storage device. The connecting member is adjustable to move the second mounting member toward or away from the first mounting member, thereby sandwiching or releasing the data storage device. The mounting members are fixable to the mounting plate.

Abstract: There is provided an information-processing equipment including an optical disc drive 40 within a chassis 31 thereof, the optical disc drive comprising: a turntable 41 for rotatably supporting an optical disc; an optical pickup 42 for recording an information signal onto the optical disc and/or reproducing an information signal recorded on the optical disc, and a movement mechanism 43 for moving the optical pickup in a radial direction of the optical disc; wherein a step part 37 extending in a predetermined direction Ls is formed on an inner surface of the chassis in an area where the optical disc drive is to be fixed, and wherein the optical disc drive is fixed in the area on the inner surface of the chassis at three portions 46A, 46B, 46C positioned straddling the step part.

Abstract: The present invention relates to a card reader having communicating function which includes: a top cover; a bottom cover having a first open slot at one side; a printed circuit board; a first memory insertion slot allowing a first removable memory card to be inserted; a processor for controlling the access of first removable memory card; a wireless communication module; a card reader controller; a connector; a charging circuit; a rechargeable battery; and a voltage regulation circuit; such that a portable electronic device is able to access the data in the first removable memory card with a wireless means, or a mainframe is able to access the data in the first removable memory card through the connector.

Abstract: A memory carrier system includes a carrier chassis that includes a board having a board connector. The board is operable to couple to a plurality of memory modules. A pair of pinion cams are rotatably mounted to the carrier chassis. A handle is moveably coupled to the carrier chassis and includes a pair of rack arms. Each rack arm engages a respective pinion cam. The carrier chassis is operable to be positioned in an information handling system (IHS) chassis that includes an IHS connector, and the handle is operable to be moved relative to the carrier chassis in order to rotate the pinion cams into an engagement with the IHS chassis that provides a cam force that mates the board connector to the IHS connector.

Abstract: A mounting apparatus for a storage device includes a chassis, a carrier and a bracket configured to secure the storage device to the chassis. The carrier includes a handle and a first extending arm, the handle is configured to secure the carrier to the chassis, and a positioning slot is defined in the first extending arm. The bracket includes a first side plate. An elastic securing piece is disposed on the first side plate, and a latch is formed on the securing piece. The latch is engaged in the positioning slot of the first extending arm to mount the bracket to the carrier.

Abstract: An electronic device includes a frame defining a slot and a through hole, a slot cover moveably received in the slot, an elastic piece rotatably connected to the frame, and a torsion spring. The elastic piece includes a main body, a side arm and an extended tab defined on opposite ends of the main body. When the elastic piece is at a normal position, the side arm faces the first through hole, and the tab faces the slot. The torsion spring includes a first arm fixed to the frame and a second arm fixed to the elastic piece. The elastic piece is rotatable by insertion of an elongated object into through the through hole to push the side arm, thereby causing the tab to push the slot cover to be deformed until the hook disengages from the slot.

Abstract: An information handling system (IHS) cooling system includes an IHS chassis defining an IHS chassis air inlet. A cooling chassis supports the IHS chassis on a support base. An air supply duct extends from the cooling chassis such that an air supply duct outlet on the air supply duct is immediately adjacent the IHS chassis air inlet. An air cooling subsystem is located in the cooling chassis and is operable to cool air that is drawn into the cooling chassis and supply the cooled air to the IHS chassis air inlet through the air supply duct. The IHS chassis may be a conventional IHS chassis that is designed for sub-35 degree Celsius ambient temperatures, and the cooling chassis may be provided for the conventional IHS chassis when used in extreme environments with high ambient temperatures above 35 degrees Celsius.

Abstract: A serial advanced technology attachment dual-in-line memory module (SATA DIMM) assembly includes a SATA DIMM module with a circuit board and a cable member. A first edge connector is set on a bottom edge of the circuit board to be connected to a memory slot of a motherboard. A second edge connector is arranged on an end of the circuit board. The cable member includes a cable, a first storage device interface extending from a first end of the cable to be connected to a second storage device interface of the motherboard, and a third edge connector formed on a second end of the cable and soldered to the second edge connector.

Abstract: A computer system includes a motherboard with first and second storage device interfaces and first to third memory slots, and first to third serial advanced technology attachment dual-in-line memory modules (SATA DIMMs). First and second extending boards are extended from two opposite ends of each SATA DIMM, arranged with first and second edge connectors, respectively. The first edge connector of the first SATA DIMM is connected to the first storage device interface. The second edge connector of the first SATA DIMM is connected to the first edge connector of the second SATA DIMM. The second edge connector of the second SATA DIMM is connected to the first edge connector of the third SATA DIMM. The second edge connector of the third SATA DIMM is connected to the second storage device interface.

Abstract: A presence detectable baffle for electrical components in a computing system, including: a passive chassis having a form factor is consistent with an electrical component of the computing system; and a presence detectable pin set connected to the passive chassis, the pin set consistent with the electrical component.

Abstract: A server rack configured for a plurality of servers is disclosed, in which each of the servers has a power supply circuit board. The server rack includes: a case having a first face and a second face opposed to each other, the first face having an opening for the servers to be arranged in the case in an orientation; a power supply module provided on the second face of the case; and a power transmission assembly composed of a busbar provided on the second face in the orientation and electrically connected to the power supply module; and a plurality of electrical connectors provided on the busbar and coupled respectively with the power supply circuit boards of the servers. Through the power transmission assembly, the servers may be powered in a centralized way by the power supply module.

Abstract: A data center is disclosed that includes a container; a server; a rack installed within the container and storing the server; and a curtain fixed to at least one point of the rack or the container and separating an internal space of the container between a cold side and a hot side; wherein the rack is configured to enable the circulation of air from the cold side to the hot side. The curtain is fixed by a removable clamping mechanism. The data center further includes a modular refrigeration unit configured to attach to the container and direct cold air into the cold area. At least one prop is positioned below a bottom of the housing and connected to a container bottom, the prop is configured to absorb vibration of the container or housing.

Abstract: A data storage device mounting apparatus includes a base, a securing member, and a cover engaged with the base. The base includes a receiving portion and a recess, the recess defines a through hole. The securing member is secured to a first data storage device and includes a securing piece. The securing piece defines a stopping hole. The cover is configured to cover a second data storage device. A stopping portion located on the cover. The receiving portion is adaptor to receive the first data storage device, the securing piece is received in the recess, and the stopping portion extends through the through hole to engage in the stopping hole, for preventing the first data storage device from disengaging from the receiving portion.

Abstract: An exemplary electronic device includes a case, an inner body and a pivotable arm pivotally connected on the inner body by a pivot. The case defines an opening at a first lateral side thereof and a latching hole at a second lateral side thereof adjacent to the opening. The inner body is inserted in the case through the opening. The pivotable arm includes a frame engaged in the latching hole of the case, a latching member pivotally connected to the frame by the pivot, and a resilient member. The latching member includes an inner end and an outer end at opposite sides of the pivot. The outer end of the latching member is engaged in the latching hole. The resilient member abuts against the inner end of the latching member such that the inner end of the latching member biases the inner body.

Abstract: A docking apparatus comprises a processor, a battery charging module, a storage device, and one or more ports, which are configured to couple with patient monitoring units. Each patient monitoring unit is operable to monitor at least one physiological parameter of a patient. The battery charging module charges the patient monitoring units through the ports. The storage device stores data received from the patient monitoring units through the ports. The processor transmits updates to the patient monitoring units through the ports. The ports may comprise sockets that receive plugs from cables of the patient monitoring units. The docking apparatus may comprise a plurality of separate dock housings associated with corresponding patient monitoring units. These dock housings being joined together in a daisy chain. The docking apparatus may also include a plurality of docking recesses in a single housing, with each docking recess being associated with a corresponding patient monitoring unit.

Abstract: A fixing mechanism includes a positioning frame for mounting a data access device thereto and including two opposite sidewalls each having two spaced-apart through holes, a plurality of shockproof elements each extending through and being retained in a respective through hole and including a passage, and two positioning rods for positioning the data access device therebetween. The passages of the shockproof elements are adapted to correspond in position with the positioning holes. Each positioning rod includes a main body portion, and two insert portions formed respectively at two opposite ends of the main body portion. Each insert portion extends through the passage of one of the shockproof elements, and is adapted to extend into a respective positioning hole. The shockproof elements are adapted to abut against the data access device when the data access device is positioned between the positioning rods.

Abstract: A memory module with attached transposer and interposers to provide additional surface area for the placement of memory devices is disclosed. The memory module includes a memory board with a first surface, a second surface and an edge with a set of electrical contacts. A transposer is attached to each surface of the memory board, and an interposer is attached to each transposer on the opposite surface of the transposer from the memory board. The interposer has space to allow placement of memory devices on both a first surface between the interposer and the memory board, and on a second surface of the interposer away from the memory board.

Abstract: A motherboard assembly includes a serial advanced technology attachment dual-in-line memory module (SATA DIMM) with a circuit board, a memory slot, and an interface. An edge connector is set on a bottom edge of the circuit board. A SATA connector is arranged on the circuit board, and connected to a control chip and the interface, enabling a motherboard communication with the SATA DIMM module.

Abstract: An expansion card fastening device includes a bracket, a first fastener, and a second fastener. The bracket includes parallel arranged fences. The first fastener is assembled on one of the fences, and includes a connecting portion, a supporting portion, and an elastic element. The supporting portion and the elastic element are both disposed on an end of the connection portion. A first clasp protrudes from the supporting portion, and faces the same direction with a free end of the elastic element. A second fastener pivots to the supporting portion, and is resisted by the elastic element. A second clasp protrudes from the second fastener, and faces the same direction with the first clasp.

Abstract: A multiple hard drive connection system includes a first backplane, a second backplane, and a card assembly. The first backplane includes a pass-through and a first socket, and couples to a control system such that the first socket is in electrical communication with the control system. The second backplane is adjacent to and spaced apart from the first backplane, includes a second socket aligned with the pass-through, and couples to the control system such that the second socket is in electrical communication with the control system. The card assembly includes a first edge card connected to the first socket and a second edge card extending through the pass-through and connected to the second socket. The card assembly couples to a hard drive such that the hard drive is in electrical communication with the control system via the first backplane, the second backplane, and the card assembly.

Abstract: The embodiments of the present invention provide a card reader, electronic apparatus and protection method for memory card. The card reader comprises: a card slot having an accommodation space for accommodating a memory card, with parallel guiding slots being arranged on the left side and right side walls of the card slot; and a cover arranged on the card slot and being slidable on the card slot via the guiding slots. With the embodiments of the present invention, the delay time for stopping the read-write protection may be increased, the memory card may be protected in time, and the back repair rate of the memory card may be reduce.

Abstract: Multi-purpose anti-confusing, time-saving, cost-effective hybrid flash drive organizers, methods and systems with easily recognizable color-coded external sectors, color-coded differential LED signal lights, correlating respectively with related internal/external electronic components, achieving easier organized data/information sharing, transfer, storage, retrieval and display when connected to host system; one embodiment having attachable/detachable sectors providing different combinations of USB connectors; another embodiment of with uni-body housing having one common USB prong; another embodiment with at-least a pair of USB prongs; all offering faster conveniences to millions of global flash drive users in all walks of life, providing vast applicability for numerous personal, professional, educational, organizational and business works; providing to different manufacturers, distributors and merchandisers with greater range of practical applications and marketing advantages; broadly applicable to inter-lin

Abstract: A latching system includes a removable chassis having at least one enclosure coupling feature that is operable to engage an enclosure to house the removable chassis in the enclosure. A moveable component is moveably coupled to the removable chassis. A latch is coupled to the removable chassis. The latch is operable to engage the moveable component when the removable chassis is not housed in the enclosure such that the moveable component is restricted from moving relative to the removable chassis. The latch is operable to disengage the moveable component in response to the removable chassis being housed in the enclosure such that the moveable component is not restricted from moving relative to the removable chassis. The latching system allows the removable chassis to be carried around outside the enclosure without movement of the moveable component, while also allowing the moveable component to move when the removable component is housed in the enclosure.

Abstract: Multi-layer printed circuit boards (PCB) with power plane islands to isolate noise coupling are provided. In addition, methods and computer program products for manufacturing multi-layer PCBs with power plane islands to isolate noise coupling are provided. Embodiments include a PCB comprising a first power plane coupled to a power supply, the first power plane within a layer of the PCB; a second power plane and a third power plane, the second power plane and the third power plane within another layer of the PCB, the second power plane and the third power plane separated from each other within the other layer of the PCB; and a via bridge structure connecting the first power plane to both the second power plane and the third power plane.

Abstract: In one embodiment, a mini appliance comprises: one or more low-power, low-heat, and low sound processors; one or more memories; and one or more software modules performing one or more system-management functionalities.

Abstract: A serial advanced technology attachment dual-in-line memory module (SATA DIMM) device assembly includes an interface, a cable, and a board. An edge connector is set on a bottom edge of the board, and a control chip and a connector are arranged on the board. The connector includes a first shell and a number of first pins. The first pins include signal pins connected to the control chip, and ground pins. The interface includes a second shell and a connecting portion extended from a bottom of the second shell. A number of second pins are arranged on the connecting portion. The cable is extended through a side of the second shell to be connected to the first pins. A distance between a top of the first shell and a top of the board is greater than a height of the second shell.

Abstract: Techniques are disclosed for reducing impact of a switch failure and/or a repair action in a switch fabric. In one embodiment, a server system is provided that includes a first interposer card that operatively connects one or more server cards to a midplane. The first interposer card may include a switch module that switches network traffic for the one or more server cards. The first interposer card may be hot-swappable from the midplane, and the one or more server cards may be hot-swappable from the first interposer card. The server system may further include an interconnect between the first interposer card and a second interposer card.

Abstract: A multifunctional USB flash drive organizer includes a main unit, an interior of which is provided with a containing chamber to put USB flash drives. A side of the containing chamber is pivoted with USB sockets which can turn and a wire containing slot is provided beside the containing chamber. The main unit is provided with a wire collection device and a USB connector, with that a connection cable of the USB connector is electrically interconnected with the wire collection device. In addition, multiple USB flash drives can all operate at a same time. A wallet unit encloses the main unit as a box which is convenient in labeling for drive management and can be carried easily.

Abstract: A serial advanced technology attachment (SATA) DIMM device includes a board body. A control chip is arranged on the board body. First and second extending boards extend from an end of the board body and a space is defined between the first and the second extending boards. A first edge connector is set on the first extending board and a second edge connector is set on the bottom edges of the second extending board and the board body. The first edge connector includes a number of signal pins connected to the control chip, and a number of ground pins.

Abstract: A holding portion 12 has a shape which allows relative movement between a pivot portion 21 and the holding portion 12 in the radial direction of the pivot portion 21 such that cover 20 is attachable to, and removable from, a cabinet 11 in the radial direction of the pivot portion 21. An engaging member 50 is movable between a locked position and a unlocked position. At the locked position, the engaging member 50 engages with the cabinet 11 so as to restrict the relative movement between the pivot portion 21 and the holding portion 12. At the unlocked position, the engaging member 50 releases the engagement between the engaging member 50 and the cabinet 11. A stopper 13 restricts the movement of the engaging member 50 from the locked position to the unlocked position.

Abstract: An extension positioning structure for a portable memory device comprises a main body in a shell. A first end of the main body is disposed a drive element, and a spring is mounted outside a second end of the main body. A positioning element is pivotally disposed between the shell and the drive element. The positioning element includes a pivot shaft and an engaging portion. The engaging portion is helically formed with multiple cutting surfaces, and the positioning block is formed with a positioning block and a limiting block. By pushing the drive element, the cutting surface of the engaging portion of the positioning element cooperates with the positioning block and the limiting block to make the connecting terminal extend out of and retract into the shell, facilitating the operation and storage of the memory device while reducing both the production cost and increasing the yield rate.