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PCIE-SE2 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
LinksTek

LinksTek PCIE-SE2 2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP

Bottom line: The PCIE-SE2 2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP ($29.99 on Amazon as of 2026-10-06): Adds 2 native RS-232 DB9 ports via a single PCIe x1 slot; main trade-off: driver install required on every Windows version, XP through 11.

$29.99

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Buy on Amazon — $29.99 Compare to similar expansion cards

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Adds 2 native RS-232 DB9 ports via a single PCIe x1 slot
  • ✓ ASIX AX99100 chipset with 256-byte transmit FIFO
  • ✓ Ships with both full-size and 2 low-profile brackets
  • ✓ Fits x1, x4, x8 or x16 slots on Intel, AMD and ARM boards

Cons

  • ✗ Driver install required on every Windows version, XP through 11
  • ✗ Linux users must compile source from the bundled CD
  • ✗ Drivers arrive on a Mini-CD many modern PCs cannot read
  • ✗ Low-profile bracket swap is a manual screwdriver job

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SpecPicks Verdict

SpecPicks scored PCIE-SE2 2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. LinksTek's expansion cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for expansion cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • 1. PCIE-SE2 allow users add 2X RS232 BD9 serial Ports on desktop PCs or industrial devices by motherboard PCI Express slot.
  • 2. Seamless connect to serial DB9 ports device such as POS system, industrial testing and control device, security system, logistic management equipment, scanners and printers.
  • 3. Need to install driver on Windows XP, Vista, 7, 8.x, 10, 11 (32/64bit) systems. Linux kernel 2.6.x, 3.x, 4.x, 5.x need to refer compile source code from the driver CD.
  • 4. Selected by ASIX AX99100 solution supports on chip 256-byte depth FIFO in transmit. Works on Intel, AMD, ARM hardware platform.
  • 5. The full-size bracket on this expansion card will works on standard size PCs. The 2X low profile bracket for slim PCs. Based on PCIE X1 interface, will works on X1, X4, X8, X16 slot.
  • 6. ATTENTION: 1. Must make sure users PCs have empty PCIE slot.2. Slim PC users need change to low profile bracket by hand. 3.Please install correct driver from Mini-CD for desktop PCs.

Full Specifications

BrandLinksTek
StyleClassic
Style NameClassic
Unit Count2.0 Count
Model NumberPCIE-SE2
CompatibilityPC, Linux
Item Type Name2-Ports PCIE RS232 DB9 Serial Card
Mfr Part NumberPCIE-SE2
Compatible DevicesPersonal Computer
Hardware InterfacePCIE x 1
Warranty DescriptionLimited Parts Warranty.
Full listing titlePCIE-SE2 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

Ready to buy?

PCIE-SE2 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 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $29.99

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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PCIE-SE2 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
$29.99
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