Here are some useful accessories brought to you by Enter. The highly-functional 4 and 7 port USB hub serial cards and host cards will make your working experience better than before. Be quick in picking the one you need and comfortably suffice your daily computer related works.Key Features:PCI to 1 Serial port & 1 Parallel port controllerPlug & Play - Automatically selects IRQ and I/O addressSupports PCI IRQ sharingPCI Specification Revision 2.1 compliantCompatible with standard 16C550 UART with 16 byte transmit-receive FIFOFast data rates up to 1 Mbytes/secPin header serial port connector x 1SPP PS2 EPP ECP compatible IEEE 1284 printer portFast data rates up to 1.5 Mbytes/secBuilt in 16 Byte FIFODB25 parallel port connector x 1