PCI-E PCI Express To Dual Serial DB9 RS232 2 Port Controller Adapter Card Fit
Serial Interface (RS232) Type: PCI-E to Serial Interface Card. Interface: 1 x PCI-E, 2 x Serial. Feature: 1. Two (2) 9-pin RS-232 serial ports. Serial signal RS - 232: TxD, RxD, RTS, CTS, DTR,, DCD, GND.