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StarTech.com PEX4S232485 4-Port PCIe Serial Card 2xRS232 2xRS422/485

StarTech.com PEX4S232485 4-Port PCIe Serial Card 2xRS232 2xRS422/485

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Description

StarTech.com PEX4S232485 4-Port PCIe Serial Card 2xRS232 2xRS422/485

This is a StarTech.com 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485 (MPN: PEX4S232485, UPC: 065030849357). The PEX4S232485 adds two RS232 serial ports and two RS422/RS485 serial ports to your PC through a PCI Express expansion slot. It supports RS-232, RS-422, RS-485 2-wire, and RS-485 4-wire modes for versatile serial communication in full-size or small form factor systems. Backed by StarTech.com lifetime warranty and free lifetime technical support.

PCIe COMPATIBILITY: Installs in PCI Express x1 slots and is backward compatible with x4, x8, or x16 slots. Includes both low-profile and full-profile brackets for small form factor and standard desktop PCs.

Versatile Serial Connectivity Features

  • Mixed Port Configuration – Two RS232 ports plus two switchable RS422/RS485 ports for broad protocol support including RS-232, RS-422, RS-485 2-wire, and RS-485 4-wire modes.
  • Breakout Cable Design – Single breakout cable connects all four DB-9 ports, minimizing clutter and simplifying cabling for industrial or legacy device connections.
  • Flexible System Fit – Low-profile and full-profile bracket options ensure compatibility with compact PCs and standard towers.
  • High-Speed Performance – Up to 3.59 Mbit/s data transfer rate on RS422/RS485 ports, suitable for demanding serial applications.
  • TAA Compliant Build – Meets Trade Agreements Act standards; manufactured in Taiwan with RoHS, WEEE, and REACH certifications for environmental compliance.
  • Plug-and-Play Ready – Includes driver CD for easy setup on PC platforms.

Comprehensive Technical Specifications

Specification Details
Brand StarTech.com
Manufacturer StarTech.com
MPN / Manufacturer Part Number PEX4S232485
UPC 065030849357
Product Type Multiport Serial Adapter
Host Interface PCI Express x1
Maximum Data Transfer Rate 3.59 Mbit/s
Platform Supported PC
Ports 2 x RS232, 2 x RS422/RS485; 4 x DB-9 Serial via breakout cable
Form Factor Plug-in Card
Card Height 2.7"
Card Width 0.6"
Card Weight (Approximate) 2.40 oz
Package Weight 0.80 lb
Package Height 1.70"
Package Width 5.80"
Package Depth 8.30"
Length Description Short
Country of Origin Taiwan
TAA Compliant Yes
Environmental Certifications RoHS, WEEE, REACH
Environmentally Friendly Yes
Warranty StarTech.com Lifetime Warranty
Packaged Quantity 1 Each

Installation Guide for StarTech.com PCIe Serial Card

Simple PCIe installation typically takes 10-15 minutes. Pro tip: Ground yourself with an anti-static wrist strap to protect components.

  1. Power off PC and unplug from power source; open case and locate available PCIe x1 slot.
  2. Remove bracket cover; insert card firmly into slot and secure with low-profile or full-profile bracket as needed.
  3. Connect the included breakout cable to the card's internal connector for external DB-9 access.
  4. Close case, power on, and boot into OS; insert driver CD or download from StarTech.com for automatic detection.
  5. Verify ports in Device Manager; test with serial devices. Pro tip: Update motherboard chipset drivers prior to installation for optimal compatibility.

Why Choose StarTech.com 4-Port PCIe Serial Combo Card

The PEX4S232485 provides a reliable single-card solution for expanding serial connectivity, with broad protocol support and included accessories for immediate deployment in professional environments.

Enhance your PC with StarTech.com PEX4S232485 serial ports—Order today!

Type: Multiport Serial Adapter

MPN: PEX4S232485

Compatible Brand: StarTech.com

Country of Origin: Taiwan

Compatible Port: PCI Express x1

External Interfaces: Serial (RS-232)

Number of Ports: 4 Ports

Model: PEX4S232485

Manufacturer Warranty: Lifetime

Brand: Does not apply

UPC: 065030849357