Treedix 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

This is a very nice device and provides a lot of useful information. It is easy to use and easy to read. It comes with a small instruction booklet that is quite clear. The basic process is to connect both ends of your cable to the device and slide a small switch to the desired power source (included AA battery or external USB C power source). There are four pages of information and you step through them by pressing a small button. The first page gives you a summary of the protocols supported (e.g., USB 2.0, 3.2, 4 and Thunderbolt). Note that it does not report the "generation" of USB 3.2. Your computer might have USB 3.0, 3.1, 3.1 gen 1, or 3.2 gen 1 interfaces - these are all equivalent to 3.2 gen 1 (5 Gbps) and the "USB 3.2" indicator that will light for cables that support that. However, it also will light for USB 3.1 gen 2 and USB 3.2 gen 2 (10 Gbps), and for USB 3.2 gen 2x2 (20 Gbps) cables. The fact that 3.2 lights up indicates it's at least 5 Gbps but might be more. The second page shows the wire connection list between the two ends of the cable. The third page shows some resistance and latency information. The fourth page shows data from the "e-marker" chip, if present. These chips are embedded in some USB C cables. If present, the e-marker will report the max data rate and the max charging power supported. If you have USB A-A or USB A-C cables, or USB C-C cables without e-marker chips, you won't be able to tell whether they are rated for 5 (gen 1) or 10 (gen 2) or 20 Gbps (gen 2x2). If you have a cable with a chip, you will see the maximum data rate on the fourth page. Note also that if you want to evaluate a USB A-A cable, you'll need a USB A to C adapter plug. The unit has a wide variety of USB 2.0 connectors but only one Type A USB 3 connector. To perform the tests, both ends of the cable have to be connected to the device so you must be able to adapt a Type A connector on one end of the cable to a Type C. Overall I recommend this, but I wish it could tell which USB A-A 3.x cables support 5 (gen1) or 10 Gbps (gen 2) interfaces. I suspect it is technically impractical to determine that in a low cost device. I found that almost all of the USB C "charging" cables I have lying around have no e-marker chip and no data capability at all or just USB 2.0 480 Mbps. An e-marker chip is required for any cable that supports 60W or greater charging; any cable lacking the chip must necessarily be rated for <60 Watts, but you cannot tell whether it's 15, 20, 30W, etc. Lastly, the device comes with an AA battery. You can use that to power it, or you can plug in a power source via a USB C cable.

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.

This is a handy little tester that helps you determine the properties of a cable, which often aren't obvious just by looking at the cable. It's very easy to use and although the display is fairly small, it is easy to read because the information is presented in an organized fashion. This tester supports cables with USB A or USSB C on one end, and either USB C, Micro USB, Mini USB, or Micro USB "3.0". Unfortunately it does not support USB B ("printer style") connections or USB B 3.0 style cables. Since those connectors are larger, I believe it would require the tester to be thicker. Additionally, this tester does not support lightning cables. There are 4 "screens" of information which you cycle through by pressing a (very) small button. The first screen is an overshowing if the cable can transmit data and power, and which type(s). The second screen shows the actual wire connections and their status. The third screen shows the cable resistance and can estimate the cable length, and the 4th screen will show the details of an active chip if there is one in the cable. Every computer technician or enthusiast should have one of these in their bag! PROS: * Small and easy to use * Gives you all of the details you need to know about a cable * Flexible and supports a number of common cable types and configurations CONS: * Does not support USB B, USB B 3.0, or lightning * Button to move between screens is a bit small

Works as advertised.

Es una excelente herramienta, tengo demasiados cables en casa y pues ya con éste equipo ya podré clasificar si es para datos de baja velocidad, alta velocidad o simplemente cable de carga.

One of the best purchases if you use lots of different Usb cables and devices. There are Soooo many reasons why certain cables don’t work. Usb is “less a standard” and “more a lottery” but this makes it simple to check and label every cable for it’s suited purpose.

Works very well. I am going through every USB cable in the house. If broken it gets recycled. Anything lower than USB 2 gets recycled. They all get labelled and marked if it can handle PD.

Item is as described. Fast delivery. It is a bit expensive but display the necessary info about the cables. I wished the device can update future firmware when technology evolved. Thank you very much.