ITEM NAME:PCI-E To DB9 Serial Port RS232 Controller Converter Transfer Description: Two (2) 9-pin RS-232 serial ports.PCI Express x1 interface (will also work on PCI-E x16 slot). Fully compliant with PCI Express Base Specifications Revision 2.1. PCIe Multi-function Peripheral controller x1 lane interface. 16c450/550/Extended 550 compatible UARTs.Bi-directional speed from 50 bps to 16 Mbps/port. Full serial modem control.Supports hardware and software flow controls. Specification: OS support: Windows 7 (32/64), Vista (32/64), XP (32/64), and 2000. Size Chart: Approx.132x100x15 mm/5.2x3.9x0.6 inch Package Includes: 1 Piece PCIE magnification card Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement. SKU: FUZ0019536277017351.OS support: Windows 7 (32/64), Vista (32/64), XP (32/64), and 2000. 1 Piece PCIE magnification card.