STARTECH 

PEX4S232485 StarTech.com 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485

Mfg Part Number:  PEX4S232485  
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Price: $143.39
Quantity:
In Stock: 171
Last Updated: Jan 30, 2026
No Sales Tax except these states
, PO and Wire.

The PEX4S232485 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485 lets you add two RS232, and two RS422/485 serial ports to your PC through a PCI-Express expansion slot.

This PCI express serial card is a single card solution that is compatible with nearly any serial communication protocol, supporting RS-232, RS-422, RS-485 2-wire or RS-485 4-wire operating modes.

A flexible solution for adding serial ports to full-sized, or small form factor systems, the 4-port serial card includes both low and full profile brackets while the included breakout cable helps to avoid cluttered connections.

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

More from the Manufacturer

More from the Manufacturer

Main Specification
General Information
Manufacturer StarTech.com
Manufacturer Part Number PEX4S232485
Manufacturer Website Address http://www.startech.com
Brand Name StarTech.com
Product Name 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485
Packaged Quantity 1 Each
Product Type Multiport Serial Adapter
Technical Information
Host Interface PCI Express x1
Maximum Data Transfer Rate 3.59 Mbit/s
Platform Supported PC
Interfaces/Ports
Ports Expandability 4 x DB-9 RS-232/422/485 - Serial, Via Cable
Physical Characteristics
Form Factor Plug-in Card
Height 2.7"
Width 0.6"
Weight (Approximate) 2.40 oz
Miscellaneous
Package Contents
  • 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485
  • 1 x Breakout Cable
  • 1 x Low Profile Bracket
  • 1 x Driver CD
  • 1 x Instruction Manual
Country of Origin Taiwan
TAA Compliant Yes
Environmentally Friendly Yes
Environmental Certification EU RoHS
Environmental Compliance Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)
Environmental Compliance Restriction of Hazardous Substances (RoHS) 2
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Warranty
Limited Warranty Lifetime
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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