USB Cable Tester with 2.4" Color Screen for eMarker Reading, PD 3.0/3.1 Detection, Resistor and Continuity Check, Compatible with Lightning, Type-C, Micro-B 2.0/3.0, and Mini-B Cables

Cables, Cables, Cables! Cables have gotten a lot more sophisticated over the years. It’s no longer just wires connecting two ends. Many modern cables include internal circuitry, chips, and e-markers that tell your devices what they can handle in terms of charging and data transfer. This little tester removes the uncertainty of trusting cable descriptions. It works with USB-C, Micro-B, and Mini-B cables, and can check continuity, data capability, and resistance. It also reads USB-C e-markers to show power delivery and data transfer capabilities, which is very helpful when sorting through a drawer full of mixed cables. What I like: - Works with more than just USB-C cables, including Micro-B and Mini-B - Reads USB-C e-markers to identify supported charging and data specs - Checks for continuity and resistance to verify cable integrity - Compact, easy to power with either USB or AAA batteries - The color screen is bright and clear, with an intuitive menu system It doesn’t test real-time charging performance, and that’s fine since that’s not what it’s designed for. I use another simple tester for that. This one is for verifying specs and quality, and it does that job perfectly (see pictures). If you have lots of cables and want to know exactly which ones are high-quality or support fast charging, this is an excellent tool to have on your bench or desk.

Great little device. Being in IT, I'm always figuring out what cables are bad or good. This device will not only tell you, it will let you know if cable can carry data as well. This is super helpful if you're trying to connect your Apple Car Play / Android Auto or your phone or device to a PC. I like the color display, it's easy to read. The features I like are the multiple types of USB you can test. Overall, I never thought I needed it until I got one!!

Here’s your updated version with that additional technical detail included smoothly: *** I have a ton of USB cables but could never tell which ones were power-only, USB 2.0, or high-speed USB 3.2—the kind needed for SSDs and faster data transfers. Since it’s almost impossible to tell just by looking, I bought the TreeDeX USB Tester. It’s a compact little device, about 2 inches by 2 inches. I used it for the first time today because I had a cable and drive that weren’t being recognized, and I needed to figure out what kind of cable I was dealing with. I do have the manual somewhere, but like most guys, I didn’t bother reading it. The tester has ports on the right side for both USB-C and standard USB, and additional slots on the bottom for older connectors—from the old Mini USB to USB-C. On the left side, there’s a USB-C charging port, an on/off switch, and the main button that runs the tests. You connect your cable to one of the ports on the right and the end to one of the bottom ports. Turn on the tester, then you just press the test button and it automatically moves through each of the four test reports. These reports show various details about the cable’s connections and performance. Some of the data was a bit technical, but the key information—the cable type and data speed—was easy to find. It identified my cable as a passive USB 2.0 type and the speed of transmission. Overall, the TreeDeX USB Tester worked exactly as I hoped and provided clear, accurate results. I highly recommend it for anyone who wants to identify and organize their cables confidently. It also has rechargeable battery, so no batteries are required.

So far, it has been working just fine for me. I like how easy it is to use. Another pro is it comes with an actual, well written, physical manual, not a QR code I have to read to download a manual. It uses a single, replaceable AAA battery to power it although an external power supply can also be used (I prefer battery operation over having a restrictive "umbilical cord" to a power supply. it ships in a well protected, reusable cardboard box. The one i received was obviously an open box (not sealed in plastic wrap like ones in review videos I've seen) but was probably unused since the included battery was still in its factory plastic seal. The box looked like it had been stomped on (thank you, Amazon, for shipping it in a flimsy envelope) but the tester itself looked just fine. Thanks to the plastic insert the tester was nestled into, the box is still in good enough shape to safely store the tester and its manual. I have four cons, though. The cover over the battery compartment was so tight it needed three men and a boy (which I didn't have handy) or a knife (which I did have handy) to get it opened (possibly the reason it had been returned). The included AAA battery was garbage. It provided power for my initial testing for around 30 minutes, then, after sitting in a drawer for a week, it was dead (yes, the tester was turned off and even if it wasn't, it turns itself off long before it can discharge a battery, another pro). I didn't take off stars in the rating for this because I have a herd of rechargeable AA and AAA batteries and had planned on using those once the original battery died. The third con is the location of the USB ports on the tester's case. The Type A and Type C output ports (actually, I would call them input ports) are located on one short side of the case and the input ports (I would call them output ports since some are Type B) are on the bottom of the case. That makes it impossible to test short cables. For example, I have a 4 inch USB 4.0 cable. it is impossible to test on this tester. I haven't checked to see what the minimum length of a cable that can be tested with this tester is but I would say it would be 6-8 inches, depending on the length of the connectors on the cable. If all the USB ports had been located on one side, it would have been possible to test shorter cables. Even though it would cause the case of the tester to be longer, it would have been worth it. The last con (and the least significant one) is not all USB connector types can be tested on this. On the "input" side, there are ports for USB Type C, micro B, and mini B (there is also a Lightning port). USB 2.0 and USB 3.2 Gen 1 Type A and B ports are missing. I have a lot of USB 3.2 Gen 1 Type A to Type A cables so it would be nice to at least check them for continuity when there is a problem or when sorting them out. Fortunately, I have only two devices that use USB 2.0 Type A to Type B cables—a flatbed scanner and my UPS— and only one USB 3.2 Gen 1 Type A to Type B—a duplexing ADF scanner. It would have been handy to have had a tester to test the latter cable when I had an issue with the scanner dropping out instead of having to order another cable and wait for it to be delivered to see if the cable was the problem (it was).

This thing can help you go through your heap of USB cables and separate the good ones from not so good ones. Easy to use.

Works great and was able to test every cable I use. I found several that were not capable of fast charging, fast data speeds, and some that were not working right. Amazing. The hardest part of using it was trying to remove the battery cover so I could remove the plastic insulator - it was really difficult and I had to use a tool to force it off. Recommended product!

Well, in my opinion it is. Does just what it says it does, and has performed great for me so far. I have well over a hundred cables that are either microUSB 2.0 to USB-A, USB-C to USB-A, or USB-C to USB-C, and this USB cable tester is great for separating the good ones from the not so good ones. Just as it has done for the cable that I have shown in my pictures. Well, there's not much else I can say about this cable tester that hasn't already been said. Except maybe, just keep in mind that this device is only meant to test cables themselves, not any devices or what the charge rate is of a device. Treedix DOES have other devices that can test charging rate and whatnot though. But anyhow, I would definitely recommend THIS cable tester to anyone who is considering getting it.

It took awhile to arrive but this is a nice handy unit that we can plug cables into and see how useful they are. I bought a different type but this one is way better. Have only used it a few times so far but still have to go through the usb cables I have and then label them so I can know what cable is capable of what