STARTECH PEX4S553 4-PORT PCIe RS232 NATIVE SERIAL ADAPTER WITH 16550 UART

SIIG DP CyberSerial 4S PCIe 4-Port RS-232 Serial Adapter Card JJ-E40011-S4

StarTech PCI Express RS232 Serial Adapter Card PEX2S953LP

PCI-E Express Serial COM DB9 RS232 + DB25 Printer LPT Port Card US Stock

StarTech PEX2S950 2 Port PCIe Express 16C950 Serial Card

StarTech 2 Port Native PCIE RS232 Serial Adapter Card 16950 UART

Lindy 4 Port Serial RS-232 - serial adapter - PCIe - RS-232 x 4

X-MEDIA XM-PEX-1P2S | PCI-E Parallel & Serial Combo PCI Express Controller Card