2 Ports RS232 34mm ExpressCard To Dual Serial Port DB9 COM RS-232 Expansion Card

Measurement Computing PCI-COM232

2 Port PCI Express RS232 DB9 Serial Port Card PCIe Serial Expansion Card PCIe

X-MEDIA XM-PEX-2S | PCI-E 2-Port Serial RS232 DB9 PCI Express Controller Card

Moschip PCI 2x Serial COM, 1x Parallel LPT Port Expansion Card - Working

2-Port Pcie Serial Expansion Card with Industrial DB9 RS232 COM Ports, 16C550 UA

Moschip PCI 2x Serial COM, 1x Parallel LPT Port Expansion Card - Working

PCI-E to 2-port RS232 PCI to COM dual serial port DB9-pin interface WCH3