1,Compatible with standard 16C550 UART with 16 byte transmit-receive FIFO 2,Fast data rates up to 1 Mbytes/sec 3,SPP, PS2, EPP, ECP compatible IEEE 1284 printer port 4,Fast data rates up to 1.5 Mbytes/sec 5,Built in 16 Byte FIFO 6,DB25 parallel port connector x 1 7,Driver supported MS Windows 98SE/ME/2000/XP/NT4.0 Server 2003/XP 64-bit/Vista, Linux, DOS