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Black Box

Black Box DB9 Mini Converter (USB to Serial), USB/RS-485 (2-wire, Terminal Block)

$151.16
$114.64 SAVE $36.52
2 availableas of 08/21/2026

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Should arrive by Thu, Oct 1 with free ground shipping

Compliance, certifications and origin

  • TAA compliant
  • RoHS
  • Origin: United States
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

  • Powered from the USB interface.
  • Includes 3-ft. (0.9-m) USB cable.

USB is the connectivity standard for today's PCs, replacing familiar serial ports. However, many commercial and industrial devices still use RS-232, RS-422, or RS-485 interfaces. To connect these devices to modern PCs, you need simple and reliable converters.

The Black Box Mini USB-to-Serial Converter offers USB-to-serial conversion in a space saving package. Simply plug the converter into an available USB port on your computer or USB hub and install the drivers supplied on CD ROM. The serial device will show up as an additional COM port in the Windows Device Manager.

RS-485 (two- and four-wire)
  • Support TDA, TDB, RDA, RDB, and GND.
  • Baud rates up to 921 Kbps.
  • Use on RS-485 2-wire or RS-422/485 4-wire networks.
  • Support Send Data Control (SDC).

RS-232
  • Full handshake support (TD, RD, RTS, CTS, DTR, DSR, DCD, RI, GND).
  • Baud rates up to 460 Kbps.

Technical specifications

General Information

Manufacturer Black Box Corporation
Manufacturer Part Number IC832A
Manufacturer Website Address http://www.blackbox.com
Brand Name Black Box
Product Name DB9 Mini Converter (USB to Serial), USB/RS-485 (2-wire, Terminal Block)
Product Type Data Transfer Adapter

Technical Information

Adapter Type Terminal Block/USB
Connector Type on First End USB 2.0 Type B - Female
Connector on First End Details 1 x Type B USB 2.0 USB Female
Connector Type on Second End Terminal Block
Connector on Second End Details 1 x Terminal Block

Physical Characteristics

Height 0.6"
Width 2.3"
Depth 1.3"

Miscellaneous

Package Contents
  • DB9 Mini Converter (USB to Serial), USB/RS-485 (2-wire, Terminal Block)
  • 1m USB Cable
Certifications & Standards CE
Green Compliant Yes
Country of Origin United States
TAA Compliant Yes
Environmental Compliance Restriction of Hazardous Substances (RoHS)

Warranty

Limited Warranty 5 Year

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.