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Serial Port Cards of 2025
Save up to 32% off
- Best Choice
1
StarTech.comStarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART - Low Profile Serial Card (PEX4S553), Green
- Value for Money
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StarTech.comStarTech.com 2-Port PCI Express Serial Interface Card, Dual Port PCIe to RS232 (DB9) Serial Card, 16C1050 UART, Low/Full Profile Brackets, COM Retention, for Windows/Linux, TAA (21050-PC-SERIAL-LP)
16% Off 3
LinksTekLinksTek 2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs, PCIE RS232 Card, PCIE Serial DB9 Port Card (PCIE-SE2)
4
StarTech.comStarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux , TAA (PEX1S953LP)
22% Off5
StarTech.comStarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Card - Windows & Linux , TAA (PEX1S553LP)
26% Off-
See Today’s Deals & Prices
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StarTech.comStarTech.com 2-Port PCI Express RS232 Serial Adapter Card, PCIe to Dual Serial DB9, Windows/Linux, TAA - Replaced by PEX2S953
16% Off7
StarTech.comStarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Dual Serial DB9 Card - 16950 UART - Expansion Card - Windows & Linux, TAA (PEX2S953)
21% Off8
StarTech.comStarTech.com 2-Port PCI Express Serial Card with 16C1050 UART - RS232 Low Profile Serial Card - PCI Serial Card, TAA (PEX2S1050)
20% Off9
StarTech.comStarTech.com PCIe Card with Serial and Parallel Port - PCI Express Combo Adapter Card with 1x DB25 Parallel Port & 1x RS232 Serial Port - Expansion/Controller Card - PCIe Printer Card, TAA
32% Off10
StarTech.comStarTech.com 1-Port PCI Express Serial Card, PCIe to RS232 (DB9) Serial Interface Card, PC Serial Card, 16C1050 UART, Standard/Low Profile Brackets, COM Retention, Windows/Linux, TAA
20% Off