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

$153.74
$140.78 SAVE $12.96
132 availableas of 09/12/2026

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Should arrive by Wed, Sep 30 with free ground shipping

Compliance, certifications and origin

  • TAA compliant
  • EU RoHS
  • WEEE
  • RoHS
  • REACH
  • Origin: Taiwan
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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

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

View user manual

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 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

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

Technical specifications

Technical Specifications of the StarTech.com 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485

General Information

General Information specifications
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

Technical Information specifications
Host Interface PCI Express x1
Maximum Data Transfer Rate 3.59 Mbit/s
Platform Supported PC

Interfaces/Ports

Interfaces/Ports specifications
Ports Expandability 4 x DB-9 RS-232/422/485 - Serial, Via Cable

Physical Characteristics

Physical Characteristics specifications
Form Factor Plug-in Card
Height 2.7"
Width 0.6"
Weight (Approximate) 2.40 oz

Miscellaneous

Miscellaneous specifications
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
Green Compliant Yes
Green Compliance Certificate / Authority EU RoHS
Country of Origin Taiwan
TAA Compliant Yes
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)Restriction of Hazardous Substances (RoHS) 2Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)
End of Life Manual Availability Yes
EU RoHS Declaration URL https://media.startech.com/cms/pdfs/pex4s232485_rohs.pdf
REACH Declaration URL https://media.startech.com/cms/pdfs/pex4s232485_rohs.pdf
REACH free of SVHC Yes
WEEE Statement https://media.startech.com/cms/pdfs/pex4s232485_weee.pdf

Warranty

Warranty specifications
Limited Warranty Lifetime

Ratings and reviews

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Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

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