StarTech PEX4S553B PCI Express x1 Low Profile RS-232 Serial Adapter Card

Genuine StarTech 1 Port Serial Adapter Card RS-232 PEX1S553LP Low Profile

Startech.com 2 Port PCIe RS-232 Serial Card Low Profile PEX2S952LP 16950 UART

StarTech 4 Port PCIe RS232 Serial Adapter Card PEX4S953LP

StarTech PEX4S553B PCI Expresss Card & TP-Link Ethernet Adapter

StarTech.com 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, Low Prof.

StarTech 2 Port Low Profile PCI Express RS232 Serial Card DB9 PEX2S952LP