Null-Modem Adapter - DB25

For short distances without line drivers.

Product Features

Connect two async RS-232 devices over short distances.
Attach to equipment ports or between two cables.

Connect two async RS-232 devices over short distances.

Lifetime Double Diamond™ Warranty (Standard)

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

Our Double Diamond Warranty* protects your Black Box® brand products from manufacturing and/or material defects.

The 522301N comes with a standard Lifetime† Double Diamond Warranty*. During the warranty period, Black Box will repair or replace your damaged equipment at NO CHARGE!*

†Lifetime Warranty Periods

• Cables - 15 Years
• Infrastructure (Cabinets & Racks, Cable Management, Power Cords, Testers, and Tools) – 10 Years
• IoT - 5 Years
• Networking - 10 Years

What’s more, we also have a 30-day return policy on most products. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package to receive a full refund.** Click here to find your local sales office to obtain a Return Authorization.

* Warranty subject to certain exclusions and limitations. Click here to view our full terms and conditions.

** Returns contingent upon specific exclusions and limitations. Click here to view our full return policy.

Overview