Abstract: A solid state disk assembly includes a solid state disk, a first heat conducting member and a second heat conducting member. The solid state disk includes a printed circuit board (PCB) and a chipset. The PCB includes a front surface, a rear surface, a first end, and a second end. The chipset is mounted on the front surface. The first heat conducting member abuts the chipset for absorbing heat generated by the solid state disk and includes at least a pair of elastic arms. The second heat conducting member attaches on the rear surface and includes at least a pair of engaging arms spatially corresponding to the at least one pair of elastic arms. The first end and the second end are clamped between the at least one pair of elastic arms. Each elastic arm engages with a respective one of the engaging arms.

Abstract: An electronic mouse includes a main body. A left button, a right button, and a middle button are arranged on the main body. A control unit switches functions of the left button and the right button when a pressing time of the middle button is pressed for more than a predetermined time, thereby the control unit switches functions of the left button and the right button of the electronic mouse.

Abstract: A motherboard includes a processor, a platform controller hub (PCH), a switch, a power connector, a switch unit, and an expansion slot. The PCH is connected to the expansion slot to output a bus signal to a serial advanced technology attachment dual in-line memory module (SATA DIMM), which is connected to the expansion slot, in response to the movement of a switch. The processor connected to the processor socket outputs a bus signal to an expansion card, which is connected to the expansion slot, in response to another movement of the switch.

Abstract: A fan control circuit of a computer includes a fan interface connected to a connector of a fan, a fan controller, a NOT gate, and an electronic switch. The fan controller outputs a PWM signal to the fan interface to control the operation of the fan, and includes a GPIO interface to output a voltage control signal to the NOT gate to switch the electronic switch on or off. A signal output of the electronic switch is connected to the fan interface. The voltage control signal is high level at the start up moment of the computer, and thus does not turn on the fan via the electronic switch. After a preset delay period, the voltage control signal is turned low by the fan controller so that the fan interface receives the PWM signal.

Abstract: A serial advanced technology attachment dual-in-line memory module (SATA DIMM) assembly includes a SATA DIMM module with a first circuit board, an expansion slot, and an expansion card with a second circuit board. A first edge connector is arranged on a bottom edge of the first circuit board and includes first power pins connected to a control chip and first storage chips, and first ground pins. A second edge connector is arranged on a top edge of the second circuit board and includes second power pins connected to a power unit, and second ground pins. A third edge connector is arranged on a bottom edge of the second circuit board and includes third power pins connected to the power unit, third ground pins, and signal pins connected to a display unit.

Abstract: A serial advanced technology attachment dual-in-line memory module (SATA DIMM) assembly includes a SATA DIMM module with a first circuit board, an expansion slot, and an expansion card with a second circuit board. A first edge connector is arranged on a bottom edge of the first circuit board and includes first power pins connected to a control chip and first storage chips, and first ground pins. A second edge connector connected to the expansion slot is arranged on a top edge of the first circuit board and includes second power pins connected to the first power pins, second ground pins, and four first signal pins connected to the control chip. A third edge connector engaged in the expansion slot is arranged on a bottom edge of the second circuit board and includes third power pins and four second signal pins connected to the second storage chips, and third ground pins.

Abstract: A test circuit includes a power circuit module arranged on a motherboard of a computer and electrically coupled to first and second idle pins of a memory slot, and an indication module including a number of branch circuits. The indication module is arranged on a memory module. When the memory module is arranged in the memory slot properly, third idle pins of an edge connector of the memory module are electrically coupled to the first idle pins of the memory slot, respectively; and fourth idle pins of the edge connector of the memory module are electrically coupled to the second idle pins of the memory slot, respectively.

Abstract: A scanner device transmits scanned image data to a predetermined computer having a local area network transmit tool via a local area network. The scanner device includes a scanning module, a storage module, a determination module, and a control module. The scanning module scans a document waiting to be scanned to form an image data. The storage module stores the image data. The determination module determines an IP address of the predetermined computer. The control module transmits the image data to the predetermined computer via the local area network transmit tool based on the IP address of the predetermined computer.

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: A protection circuit includes a switch circuit, a sample circuit, a comparison circuit, and a relay circuit. The switch circuit is connected between a hard disk power supply and a hard disk to control whether to output power from the hard disk power supply to the hard disk. The sample circuit samples the voltage being supplied to the hard disk, the comparison circuit receives the sampled voltage, compares the sampled voltage to a reference voltage, and controls the switch circuit to be turned on or off accordingly. The relay circuit is connected between a system power supply and an enable terminal of the comparison circuit. The relay circuit outputs a high level signal to turn on the switch circuit when the system power supply is being supplied and the hard disk power supply is not being supplied to the hard disk.

Abstract: A motherboard assembly includes a motherboard and an expansion card. The motherboard includes an expansion slot, a hard disk drive (HDD) controller, a power connector, and a central processing unit (CPU). The expansion slot includes a protrusion, idle pins connected to the HDD controller, power pins connected to the power connector, signal pins connected to the CPU. The expansion card includes a circuit board. A storage unit, a display unit, and a power circuit connected to the storage unit and the display unit are all arranged on the circuit board. A notch is defined in a bottom side of the circuit board, to receive the protrusion. An edge connector is arranged on a bottom side of the circuit board and includes control signal pins connected to the storage unit, power pins connected to the power circuit, and bus signal pins connected to the display unit.

Abstract: A motherboard test device includes a motherboard and a connection module. The motherboard includes a basic input output system (BIOS) chip, a complex programmable logic device (CPLD) chip, and a motherboard connector. The connection module includes a test connector connected to the motherboard connector, a first port connected to random access memory (RAM) of the BIOS chip, and a second port connected to the CPLD chip. A RAM simulator updates or tests BIOS programs stored in the RAM by connecting to the first port. A personal computer (PC) can electronically communicate with the CPLD chip by connecting a parallel interface of the PC to the second port.

Abstract: A cable holder includes a first holding unit, a second holding unit, and a fixing unit. The second holding unit hinges on the first holding unit to form an enclosed receiving space for receiving a cable. The fixing unit is connected to the first holding unit or the second holding unit to fix the cable holder on a casing. The first holding unit and the second holding unit are magnetic. The cable holder is utilized to hold and fix the cable stably on a casing.

Abstract: A power supply device used to provide electric power to a number of servers includes a first power supply and a selection circuit. The selection circuit includes a number of NOT gates, a number of controllers, and a number of transistors. An input terminal of each NOT gate is electrically connected to one of the corresponding servers. Each controller is electrically connected an output terminal of one corresponding NOT gate. A gate of each transistor is electrically connected to one of the corresponding controller, a drain of each transistor is electrically connected to the first power supply, and a source of each transistor is electrically connected to one of the corresponding server. Wherein when some of the server is powered on, the powered on servers generate power on signals which are transmitted to the corresponding controllers, the controllers generates corresponding turn on signals to turn on the corresponding transistors.

Abstract: An exemplary Peripheral Component Interconnect Express (PCIE) interface card is electrically coupled to a CPU. The PCIE interface card includes a circuit board, a first PCIE interface module arranged on the circuit board, at least one second PCIE interface module arranged on the circuit board, and a PCIE switch arranged on the circuit board. The PCIE switch is electrically coupled to the first PCIE interface module and the at least one second PCIE interface module. The PCIE switch transmits data from the CPU to the first PCIE interface module, and exchanges data between the CPU and the at least one second PCIE interface module.

Abstract: A power test board for a power supply includes a main board and a load circuit. The load circuit includes at least one switch, at least one control circuit, and at least one load resistor. A number of the load resistor being same with a number of the control circuit, each load resistor is electronically connected to one of the at least one control circuit. Toggling of the at least one switch to electronically connect to the control circuit causes the control circuit to be electronically connected to the power supply, the at least one control circuit is turned on, and the at least one load resistor is activated to serve as a load of the power supply.

Abstract: A power supply device for a computer system with a plurality of servers includes a control unit, a main board, and a connection unit. The control unit includes a plurality of switches. The main board includes a power supply and a strobe circuit. When any one or more of the switches is turned on, each turned-on switch generates a control signal. The control signal causes the power supply to be turned on, and simultaneously causes the strobe circuit to generate a selection signal corresponding to the turned-on switch. The connection unit electrically connects the power supply to a server corresponding to the turned-on switch in response to reception of the selection signal from the strobe circuit by the connection unit.

Abstract: A motherboard assembly includes a motherboard and a serial advanced technology attachment dual-in-line memory module (SATA DIMM) module with a circuit board. The motherboard includes an expansion slot and a storage device interface. An edge connector is set on a bottom edge of the circuit board to be detachably engaged in the expansion slot, and a notch is set on a bottom edge of the circuit board to engage in a protrusion of the expansion slot. A SATA connector of the circuit board is connected to the storage device interface of the motherboard.

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: A multimedia projector includes a local area network (LAN) port, a storage system, a video playing module, a file activation module, and a projection lens. The LAN port is coupled to a peripheral apparatus to receive videos and files from the peripheral apparatus. The storage system stores the videos and the files. The video playing module reads the videos from the storage system, and plays the videos. The file activation module reads the files from the storage system, and opens the files. The projection lens projects the videos and the files accordingly.