StarTech.com

StarTech.com Discontinued and Replaced by PEX2S953LP

Name: StarTech.com Discontinued and Replaced by PEX2S953LP - 2 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART (PEX2S952LP)
Brand: StarTech.com
SKU: B0037ECAO0

Bottom line: The StarTech.com Discontinued and Replaced by PEX2S953LP is a specs-and-price decision rather than a crowd-consensus one in the expansion cards category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-19

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. About the author →

Pros & Cons

Pros

✓ 2 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Used and vintage listings vary by seller and condition — check the listing photos, description and return terms before buying

Manufacturer description

"The PEX2S952LP low profile/half-height PCI Express Serial Card turns a PCI Express slot into two RS232 (DB9) serial connections.The card is constructed using a native single chip design that lets you harness the full capability offered by PCI Express (PCIe), while reducing the load applied to the CPU by as much as 48% over conventional bridge chip serial cards.The PCI Express RS232 Serial Adapter Card is compatible with a broad range of operating systems including Windows 7/ Server 2008 R2 / Vista/ XP/ 2000, Linux Kernel 2.6.11 to 4.11.x. The card comes pre-configured with a low profile…

SpecPicks Verdict

SpecPicks scored StarTech.com Discontinued and Replaced by PEX2S953LP 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

Add two RS-232 serial ports to your standard or small form-factor computer through a PCI Express expansion slot
2 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART
2 Port PCI Express Serial Card with 16950 UART
PCIe RS232 Serial Adapter Card / PCIe Serial Card Adapter w/ UART
Configured with a low-profile bracket for small form-factor/half-height systems but also includes a standard-profile bracket for full-size computers

Full Specifications

Brand	StarTech.com
Color	Red
Model Number	PEX2S952LP
Warranty Type	Lifetime
Connector Type	pci express
Item Dimensions	8.27 x 9.45 x 1.57 inches
Mfr Part Number	PEX2S952LP
Number of Items	1
Number of Ports	2
Power Plug Type	No Plug
Compatible Devices	PC
Warranty Description	Lifetime warranty
Item dimensions L x W x H	8.27 x 9.45 x 1.57 inches
Specific Uses For Product	personal
External Testing Certification	CE, FCC, WHQL
Global Trade Identification Number	00065030837170, 00777785632725
Full listing title	StarTech.com Discontinued and Replaced by PEX2S953LP - 2 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART (PEX2S952LP)

Ready to buy?

StarTech.com Discontinued and Replaced by PEX2S953LP - 2 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART (PEX2S952LP) is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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