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Brainboxes

Brainboxes PX-420 4-port PCI Express Serial Adapter

$310.37
$247.04 SAVE $63.33
None availableas of 03/30/2026

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

Compliance, certifications and origin

  • TAA compliant
  • WEEE
  • RoHS
  • Origin: United Kingdom
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

View user manual

PCI Express Card providing four RS232 serial ports. Data transfer rates up to 921,600 baud rates and the 128 byte deep transmit and 128 byte receive FIFOS, coupled with 1Mbit/s line drivers deliver uncompromising performance on your PC. Drivers for Windows 32 bit and 64 bit Operating Systems including Windows 2000, XP, Server 2003, Vista, Server 2008, Windows 7 and Windows 8.

Technical specifications

General Information

Manufacturer Brainboxes Limited
Manufacturer Part Number PX-420
Manufacturer Website Address http://www.brainboxes.com
Brand Name Brainboxes
Product Name 4 Port RS232 PCI Express Serial Card (3x9 pin ports + 1x9 pin port)
Product Type Serial Adapter

Technical Information

Host Interface PCI Express x1
Data Transfer Rate 921.6kB/s
Platform Supported PC

Interfaces/Ports

Number of Serial Ports (Internal) 1
Number of Serial Ports (External) 3

Physical Characteristics

Form Factor Plug-in Card
Height 5"
Width 0.7"
Depth 4.3"
Thickness 787.4 mil
Weight (Approximate) 2.82 oz

Miscellaneous

Package Contents
  • 4 Port RS232 PCI Express Serial Card (3x9 pin ports + 1x9 pin port)
  • Installation CD Including Manual
  • Microsoft Signed Drivers & Utilities
Green Compliant Yes
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)Restriction of Hazardous Substances (RoHS)
Country of Origin United Kingdom
TAA Compliant Yes

Warranty

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.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

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.