The IOCrest SI-PEX50054 2 port DB9 serial and 1 port DB25 parallel PCI-E 1.0 X1 controller card turns a single PCI-Express X1 slot into two RS-232 serial ports and one EPP/ECP parallel port. Suitable for installation in a small form factor computer, the PCI-E X1 serial/parallel card includes an optional low profile/half-height mounting bracket that makes installation easy. The Combo card is supported in virtually any Microsoft Windows operating environment.