StarTech.com PEX2S952PW 2 Port RS232 PCI Express Serial Card with Power Output - Black Selectable 5/12V power output on one of four different pins provides the flexibility needed to connect nearly any powered serial device Native single-chip, single lane PCI Express architecture offers increased speeds and reduces CPU load by up to 48% compared to PCI Express cards that utilize a bridge chip design Includes both low profile/half-height and full profile brackets to ensure fitment into a broad range of system form factors Two high speed RS232 serial ports with data transfer rate up to 920 Kbps Selectable voltage output of 5V or 12V Selectable power output via pin 1/4/8/9 Native single-chip, single lane PCI Express architecture Compliant with PCI Express base specifications revision 1.1