Sunix's 4079T is a serial and parallel combo expansion card. It offers you two ports of DB9M connection plus one port of parallel for all your project needs. The serial ports have a data transfer rate up to 921.6 Kbps and the parallel ports offers speed up to 2.7 MB/sec. The card is ideal for project like the POS system, automation assembly, ISDN terminal, and more. The serial card is plug-n-play capable and installation is a breeze. Bundle with the card is Sunix's unique software which can increase the FIFO memory up to 128Kbyte