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Walmart
StarTech 4 Port PCIe Serial Adapter Card with 16550 (PEX4S553)
$81.03
Antonline
StarTech.com 4 Port PCIe Serial Adapter Card with 16550
$107.06
TeciSoft
Startech.Com 4 Port Native Pci Express Rs232 Serial Adapter Card With 16550 Uart
$107.04
Adorama
StarTech 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
$136.99