Siig CyberSerial Dual PCIe 2-Port Multiport Serial Adapter - - 2 x DB-9 RS-232 Serial Via Cable (Included) - Plug-in Card

Two high-speed 16550 UART serial ports (9-pin) support data rate up to 230 KbpsPCI Express 1-lane (x1) adapter works with PCI Express slots with different lane widthInstalls in any available PCI Express slotSpare enhanced low profile bracket is included to work in low profile chassisWorks as standard RS232 port or with 5V or 12V power output for devices that require power (such as handheld scanners, table scanners, POS displays, etc.). Configurable via jumpers with silk-screened settings on PCB (Buy.com)