USB Cable Tester, USB C Cable Tester and Analyzer, LED Continuity Tester Wire Checker for Type-C & USB-A Charging Cord Data Wire Pinout, Purple Kit with 3 Batteries

This works great! The indicator LED's are labeled in tiny letters, but they read correctly and make it really easy to weed out the power-only cables in your snarled pile of USB cables. And it even comes with a couple of spare batteries!

While not as many port options as the one from Treedix, this at least covers more than just USB 2.0 which is common with lower priced testers. It's still just a battery powered continuity tester at its core, though, so it won't test how fast a cable is capable of; that's way beyond the scope of all low-cost testers. Still, this makes easy work of identifying which of my A-to-C and C-to-C cables are full-function, which are charge-only, and which are destined for e-waste. Limited port types, yes, but this was priced better too -- and was a worthwhile tradeoff.

This inexpensive device does the job of validating continuity of wires. I bought it to check USB-C to USB-C cables, some of which are only for charging (ground and VBUS wires only are connected), while cables for transmitting data have more connections. This item is really small, about 2" on a side and since USB-C cables have 24 wire connections, the labelling is so small that it is hard to what the labels are without a magnifying glass. It also works to check the continuity of wires for the ubiquitous USB-C to USB-A cables that come along with devices for charging batteries.

The tester is shipped with a small hex screwdriver and two extra CR2032 batteries, The USER manual is poorly written and has an error in section A2 reversing LEFT rows and RIGHT rows lights. It would beneficial if some additional info was on the little sheet describing which set of lights confirm the USB functions of Power and data speeds. The LEDs are so bright that it is impossible to read the LED #s, but they are in sequential order so it is very easy to confirm continuity and that is about all it does. Prompt delivery with the little box packed into a much larger box (wasted, but will go into recycle box). Good value especially if you receive the $4 discount or you are a member of VINE and received it free.

Works as described. Very helpful in verifying cable operation

Works well and quick for the price

Very handy device To make sure your USBC and USBC to A cables are good.

The “USB Cable Tester and Analyzer (Type-C & USB-A)” has been sitting on a workbench for about a week, mostly used to check random cables pulled from a drawer before putting them back into use. I ran around 15–20 cables through it, including USB-C to C, USB-A to C, and a couple older USB-A cables with an adapter just to see how consistent the readings were. Functionally, it does what it’s meant to do. You plug both ends in, and the LEDs light up to show which pins are connected. It’s quick, and it helped immediately weed out a couple cables that looked fine on the outside but had broken internal connections. That alone saved time compared to guessing or swapping cables during troubleshooting. The biggest drawback shows up as soon as you turn it on. The LEDs are very bright, almost to the point of overpowering the printed labels on the board affecting the readability. In normal room lighting, I had to angle it or partially cover the lights just to clearly read which pins were being indicated. It works, but it takes a bit more effort than it should. The labeling layout adds to that. Instead of grouping pins clearly by port type, everything is listed in a more linear sequence, so you have to slow down and match things up rather than reading it at a glance. After a few uses you get used to it, but the learning curve is there. Another limitation is power. It runs on small batteries, and replacing them requires opening the case. After a few sessions, that already feels like an unnecessary extra step, especially for something that could have easily been rechargeable through USB. One small but noticeable detail is how immediate the response is. The LEDs snap on without flicker as soon as a connection is made, which makes it easy to test multiple cables quickly in a row. This works best as a simple continuity checker for sorting good cables from bad ones. If you’re expecting deeper analysis like signal quality or performance testing, it doesn’t go that far. For basic diagnostics, though, it’s a useful tool with a few usability quirks.