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StarTech 2-Port PCI Express Serial Card, PCI Serial Card, TAA (PEX2S1050)
StarTech.com

StarTech 2-Port PCI Express Serial Card, PCI Serial Card, TAA (PEX2S1050)

Bottom line: The StarTech.com StarTech 2-Port PCI Express Serial Card is a specs-and-price decision rather than a crowd-consensus one in the expansion cards category, priced around $53.85 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

$53.85

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Buy on Amazon — $53.85 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

  • ✓ Backed by StarTech.com's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

This 2-port PCI express serial card adds two high-performance RS232 serial ports to your device, for connecting your serial-based devices and equipment. The dual port serial PCI express card can be installed into an available PCI Express slot, to provide two high-performance 16C1050 RS232 serial UART channels/ports. It offers a convenient solution for connecting modern or legacy equipment to newer computer systems that don't have RS232 ports. The low-profile serial card is compliant with PCI Express 1.0a specification, and it's compatible with 1x, 2x, 4x, 8x and 16x PCI Express slots. The…

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SpecPicks Verdict

SpecPicks scored StarTech.com StarTech 2-Port PCI Express Serial Card using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. StarTech.com'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

  • MEETS INDUSTRY STANDARDS: The 2-port PCI express serial card is compliant with PCI Express 1.0a specification, and it's compatible with 1x, 2x, 4x, 8x and 16x PCI Express slots.
  • MAXIMUM COMPATIBILITY: The dual port DB9 to PCIe adapter is ideal for system upgrades in a wide range of applications including manufacturing equipment, POS equipment, and security devices.
  • HIGH-PERFORMANCE COMMUNICATION: The low-profile serial card delivers high-performance serial communication, with support for data transfer rates of up to 460Kbps.
  • SIMPLE INSTALLATION: The PCI dual serial adapter features IRQ sharing and supports plug-and-play connection. It has a standard-profile bracket installed, and an optional low-profile bracket.

Full Specifications

BrandStarTech.com
StyleSystemBase
Style NameSystemBase
Unit Count1.0 Count
Model NumberPEX2S1050
Built-In Media1-driver CD, 1-quick-start guide, 1-serial card, 2-low-profile brackets
Item Type Name2-Port PCI Express Serial Card with 16C1050 UART - RS232 - PCIe serial card with Dual Channel 16C1050 UART
Mfr Part NumberPEX2S1050
Compatible DevicesVarious devices and operating systems
Hardware InterfaceExpress Card, PCI
Warranty Description2 Years
Smart Home CompatibilityNot Smart Home Compatible
Item Dimensions L x W x H4.1"L x 4.7"W x 0.8"H
HIGH-PERFORMANCE COMMUNICATIONThe low-profile serial card delivers high-performance serial communication, with support for data transfer rates of up to 460Kbps.
Global Trade Identification Number00065030868297, 05057454547662

Ready to buy?

StarTech 2-Port PCI Express Serial Card, PCI Serial Card, TAA (PEX2S1050) 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 — $53.85

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

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StarTech 2-Port PCI Express Serial Card, PCI Serial Card, TAA (PEX2S1050)
$53.85
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