This adapter cable enables high speed serial data transfer up to 115.2 K between the USB and the traditional RS-232 serial port. Since this adapter uses no IRQs, it is ideal for when you need many serial devices attached to your PC. Just connect your computer's or hub's USB port with a digital camera, modem, ISDN-TA modem, barcode reader, Palm III and V, tablet, label writer, fingerprint verification, security system, POS equipment or any of your favorite serial devices.