Abstract: A data transfer system is disclosed, which comprises a serial controller and a switch device. The switch device includes a first serial port, a second serial port, and a transferring unit. The first serial port and the second serial port are individually configured to transmit a first type signal to the transferring unit. The transferring unit selectively switches a transmission of the first type signal from either the first serial port or the second serial port to the serial controller. The first serial port and the second serial port are individually configured to transmit a second type signal to the serial controller, wherein the first type signal is faster than the second type signal in transmission rate.

Abstract: A reading apparatus suited for being inserted into a first electronic device or a second electronic device is disclosed. The first electronic device has a first interface receptacle. The second electronic device has a second interface receptacle. The reading apparatus has a first interface-module and a second interface-module. The first interface-module comprises a plurality of pins corresponding to the first interface receptacle and used to transmit a first interface signal. The pins comprise a plurality of first pins which are disposed on a top surface of a circuit board, and comprises a first positive-negative direction determining pin which is used to confirm whether the first interface-module is positively inserted or negatively inserted into and the first interface receptacle. The second interface-module comprises a plurality of conduction pad corresponding to the second interface receptacle and used to transmit a second interface signal.

Abstract: A reader apparatus comprises a first interface module, a second interface module, a storing module and a processor. The first interface module includes a plurality of terminals that are transferring first interface signals. The second interface module includes a plurality of conducting pads which are transferring a second interface signal. The storing module is for storing data. The processor converts storing signals generated by the storing module to the first interface signals or the second interface signals.

Abstract: A data transfer system is disclosed, which comprises a serial controller and a switch device. The switch device includes a first serial port, a second serial port, and a transferring unit. The first serial port and the second serial port are individually configured to transmit a first type signal to the transferring unit. The transferring unit selectively switches a transmission of the first type signal from either the first serial port or the second serial port to the serial controller. The first serial port and the second serial port are individually configured to transmit a second type signal to the serial controller, wherein the first type signal is faster than the second type signal in transmission rate.

Abstract: A reader apparatus comprises a first interface module, a second interface module, a storing module and a processor. The first interface module includes a plurality of terminals that are transferring first interface signals. The second interface module includes a plurality of conducting pads which are transferring a second interface signal. The storing module is for storing data. The processor converts storing signals generated by the storing module to the first interface signals or the second interface signals.

Abstract: A card reader includes a hollow base provided with a USB standard metal casing at one side, and an electric module mounted in the USB standard metal casing and the hollow base and defining with the USB standard metal casing an electronic card receiving space for accommodating an electric card such that the accommodated electronic card is insertable with the USB standard metal casing into a USB port of an electronic apparatus for two-way data transfer (reading or storing) between the electronic card and the electronic apparatus.

Abstract: A card reader includes a housing, a sliding carrier mounted in the housing to carry a USB-configured metal casing, a push tab fastened to the sliding carrier and suspending out of one side of the housing for operation by a user to move the sliding carrier and the USB-configured metal casing to the front position for insertion into a USB port in an external electronic apparatus, a circuit module mounted in the metal casing for electric connection to the external electronic apparatus after insertion of the metal casing into the USB port, a rack mounted in the bottom side of the circuit board and holding a set of conducting terminals for receiving a first electronic card, and an expansion module mounted in the rear side for the contact of a second electronic card that is inserted through a top insertion slot in the housing into a top insertion slot in the sliding carrier.

Abstract: A card reader includes a USB standard casing, a holder block fastened to the USB standard casing and defining therein an insertion hole for the insertion of an electronic card, a circuit board mounted in the USB standard casing and having a first contact set configured subject to the USB specification and a second contact set, and an electric connector electrically connected to the second contact set and kept in proximity to the insertion hole for the contact of an electronic card electrically.

Abstract: A card reader includes a hollow base provided with a USB standard metal casing at one side, and an electric module mounted in the USB standard metal casing and the hollow base and defining with the USB standard metal casing an electronic card receiving space for accommodating an electric card such that the accommodated electronic card is insertable with the USB standard metal casing into a USB port of an electronic apparatus for two-way data transfer (reading or storing) between the electronic card and the electronic apparatus.