PCI Express 1-lane (x1) adapter works with PCI Express slots with different lane width. Installs in any available PCI Express slot. Two high-speed serial ports (9-pin) support asynchronous baud rates up to 15 Mbps. Works 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. Spare enhanced low profile bracket is included to work in low profile chassis.