ITEM NAME:1Pcs Express Card 34mm to RS232 Serial Port for Computers Description: Applicable to: New style notebook computer without serial port interface or serial port interface. Through this device, it can be connected to serial port mouse, various serial devices, such as single-chip microcomputer, PLC, POS, access control, detection, communication instrument and other serial port 232 interface. Peripherals Data rate support up to 115200bps (serial port) Supports up to 1 x 16550 fast asynchronous serial Easy plug and play installation Automatically selected IRQ and input and output addresses Supported IRQ Sharing Additional serial or parallel cards allowed by the multi-card upgrade capability Package Includes: 1x Express Card SKU: FUZ0016591763013936.Supports up to 1 x 16550 fast asynchronous serial. Applicable to: New style notebook computer without serial port interface or serial port interface. Easy plug and play installation.