USB Cable Tester: In stock 2026-08-10

This is a simple board to test various USB cables! (Note the USB standard helps to identify these USB-C, cables that are compliant with the standard will have selected pins according to cable and connector specification release).

Plug in your cable to both sides and see which signals light up!

FOR CABLE USE ONLY. DO NOT EVER PLUG THIS IN TO A DEVICE, THE PINS ON ONE SIDE ARE ALL SHORTED TOGETHER AND THAT COULD BREAK IT!

Note: the CR2032 battery is NOT included in the kit.
Note: The 3D models shown are not the exact parts (as you can tell from the pins sticking out the sides of some of them) but are representative of the real parts.

This is an Open Source design: Original, and SmittyHalibut’s fork. USB Cable Tester © 2024 by Alvaro Prieto is licensed under CC BY 4.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/