STARTECH 

PEX2S5531P StarTech.com 2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART

Mfg Part Number:  PEX2S5531P  
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Price: $74.99 + Free Shipping
Quantity:
In Stock: 3
Last Updated: Jul 19, 2025
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The PEX2S5531P 2S1P PCI Express Card turns a PCI Express slot into two RS232 (DB9) serial ports and one Parallel port. The adapter card features a native PCI Express single chip design that allows you to take advantage of full PCI Express capability, providing improved speed and reliability while reducing the load applied to the CPU by as much as 48% over conventional serial cards which use a bridge chip design.

Compatible with a broad range of operating systems including Windows® 2000/XP/2003/Vista™/Windows 7/Server 2008 R2 (32 and 64-bit), Linux Kernel 2.6.11 and up, and MAC OS 10.4, this 2 Port Serial 1 Port Parallel PCI-Express Card also features an optional low profile/half-height bracket that allows the card to be installed in virtually any computer case, regardless of the case form factor.

This product is a replacement for our PEX2S5521P card.

Backed by a StarTech.com 2-year warranty and free lifetime technical support.

More from the Manufacturer

More from the Manufacturer

Main Specification
General Information
Manufacturer StarTech.com
Manufacturer Part Number PEX2S5531P
Manufacturer Website Address http://www.startech.com
Brand Name StarTech.com
Product Model PEX2S5531P
Product Name 2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART
Packaged Quantity 1
Product Type Serial/Parallel Combo Adapter
Technical Information
Host Interface PCI Express x1
Data Transfer Rate 460.8kB/s Serial Port
Data Transfer Rate 1.5MB/s Parallel Port
UART Type 16550
Platform Supported Linux
Platform Supported Mac
Platform Supported PC
Interfaces/Ports
Number of Parallel Ports (External) 1
Number of Serial Ports (External) 2
Physical Characteristics
Form Factor Plug-in Card
Card Height Dual-profile
Height 0.8"
Width 4.7"
Length 4.1"
Weight (Approximate) 4 oz
Miscellaneous
Package Contents
  • 2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART
  • Parallel Port (with Ribbon Cable)
  • Low Profile Brackets
  • Driver CD
  • Instruction Manual
Additional Information
  • Native single-chip, single lane PCI Express chipset delivers true PCIe performance.
  • Standard and low profile/half-height bracket included to ensure fitment in any system.
  • Easy to install and use with full step-by-step instructions saving time and hassle.
  • Windows® 10 (32/64), 8 / 8.1 (32/64), 7 (32/64), Vista (32/64), XP (32/64), XP Embedded, POS Ready 2009, Embedded System 2009, CE 5.0/6.0, 2000, 98SE, 95, DOS
  • Windows Server® 2012, 2008 R2, 2003
  • Mac OS® 10.4 - 10.6
  • Linux
    		•
    Environmentally Friendly Yes
    Country of Origin Taiwan
    TAA Compliant Yes
    Warranty
    Limited Warranty 2 Year
    product information
    WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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