SIIG DP 4-Port RS422/485 PCI Adapter Card

$159.99
$115.65 SAVE $44.34
None availableas of 07/29/2026

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

Special orders typically ship in 1-12 weeks.

Compliance, certifications and origin

  • RoHS
  • Origin: China
Rated excellent by our customers Read our reviews

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.

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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 SIIG DP 4-Port RS422/485 PCI Adapter Card

SIIG's DP 4-Port RS422/485 PCI Adapter Card easily adds four RS-422/485 serial ports with 15KV ESD protection to your PCI enabled desktop computer. This high quality RS-422/485 serial adapter card supports serial port data transfer rates of up to 921Kb/s, features built-in 128-byte FIFO buffers and RS-422/RS-485 auto detection and auto switching. The DP 4-Port RS422/485 PCI Adapter Card packs powerful and advanced technologies such as 15KVDC ESD protection for the serial port interface to ensure reliable data transfer, stable performance and long life and dual-profile design to fit into either full height or low profile system chassis with the included brackets.

The DP 4-Port RS422/485 PCI Adapter Card supports a wide variety of Windows operating systems, meets RoHS hazardous materials standards, comes with FCC and CE regulatory approvals and is backed by SIIG's limited lifetime warranty.

Technical specifications

Technical Specifications of the SIIG DP 4-Port RS422/485 PCI Adapter Card

General Information

General Information specifications
Manufacturer SIIG, Inc
Manufacturer Part Number ID-P40311-S1
Manufacturer Website Address http://www.siig.com
Brand Name SIIG
Product Name DP 4-Port RS422/485 PCI Adapter Card
Packaged Quantity 1
Product Type Multiport Serial Adapter

Technical Information

Technical Information specifications
Host Interface PCI
Maximum Data Transfer Rate 7.20 Mbit/s
Platform Supported PC

Interfaces/Ports

Interfaces/Ports specifications
Ports Expandability 4 x DB-9 RS-232 - Serial

Physical Characteristics

Physical Characteristics specifications
Form Factor Plug-in Card
Height 4.7"
Width 5.3"
Thickness 710 mil
Weight (Approximate) 2.24 oz

Miscellaneous

Miscellaneous specifications
Package Contents
  • DP 4-Port RS422/485 PCI Adapter Card
  • Spare Enhanced Low-profile Bracket
  • Fan Out Cable
  • Driver CD
  • 8 x Jumpers
  • User's Manual
Green Compliant Yes
Country of Origin China
Environmental Compliance Restriction of Hazardous Substances (RoHS)

Warranty

Warranty specifications
Limited Warranty Lifetime

Ratings and reviews

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Shipping and returns

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.

Special order item. This item ships direct from the manufacturer and cannot be cancelled once ordered. If you have any questions before ordering, ask us first: chat with us or call 1-800-692-8757.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.