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RS232 Serial Adapter - DB9 Male to DB25 Female

A convenient plug-in alternative to special IBMATconnector cables.This product replaces the Serial AT Adapter (FA521A-R3).


Limited Quantity In Stock
Typically Ships within One Week
1 Year Double Diamond™ Warranty (Standard)

*Required field

Product Features

  • Make the serial connections you need.
  • Guaranteed for life!


This product works with: Gender Changers (D-Style and Centronics Compatible) Questions? Contact our FREE Tech Support.

Tech Specs

Connectors (1) DB25 Female to (1) DB9 Male with male thumbscrews on both
Dimensions .5"H x 2.1"W x 2.5"D (1.3 x 5.3 x 6.4 cm)
Weight .125 lb. (.06 kg)
Product works with:
  • Gender Changers (D-Style and Centronics Compatible)

  • * Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.


    Double Diamond Warranty Diamond

    Double Diamond™ Warranty (Standard)

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

    The Double Diamond Warranty is our no-questions-asked warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!

    Plus, get an Extended Double Diamond Warranty.

    You can also extend your warranty or protect a previously purchased Black Box® brand product* for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 787-767-3500.

    ** Certain products may not be eligible.

    What’s more, we also have a 45-day, no-questions-asked return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.