We've heard a lot about the problems arising with USB Type-C cables due to them not being manufactured to the correct specifications. This is even the case with the OnePlus cable, which isn't recommended for use with any smartphone other than a OnePlus. So, how can you tell? which cables are good or not to use with our smartphone? An app like USBCheck can be useful..
USB Check
The big problem with USB Type-C cables that do not meet the technical specifications established for these cables is not only that they don't work well and don't charge our mobile phone's battery, or charge it more slowly. The big problem is that they can damage the motherboard of our smartphone or tablet, which would leave us with a practically useless device. Therefore, this is not a trivial matter, but something to pay close attention to.
The big problem is that if we're not engineers, it seems there's little we can do when it comes to analyzing a USB Type-C cable, right? Luckily, there are engineers who can create apps that take care of it, like USBCheck. The idea is simpleBefore connecting your phone to the power outlet, you'll need to connect it to your computer and run this application. The app analyzes the cable by measuring the current flowing through it and checks if... meets specificationsIf so, it will tell you that you can use it without problems; if not, it will warn you not to use it again. It is important to know that Reliable measurement is performed by connecting to the PC's USB port. and not a wall charger, and that the project is from open source so that the community can improve it.
Of course, ideally we'd know this before buying the cable. Amazon has already removed cables that supposedly cause problems, but if we didn't buy the cable through Amazon, that's not really relevant to us. We generally think cables aren't very important, but the truth is they can be crucial, to the point that a cable can affect a phone's charging time, and can even damage our smartphone. USBCheck is a free appIt was originally compatible with models like the Nexus 5X and Nexus 6P (and specific USB-C devices), and while it's not completely foolproof, if it tells you not to use the cable anymore, discard itAlternatively, there are utilities such as CheckR for certain USB-C to USB-A cables on compatible devices.
What to consider when buying a USB-C cable
Many manufacturers are cutting costs and offering charging only cables which appear identical to the data. To get it right, it's important to focus on several points:
- Type of cable: charging (prioritizes energy), active (with electronics for long distances) or complete (balanced data, video and charging).
- Data speed: from 480 Mbps (USB 2.0) to 5 Gbps/10 Gbps (USB 3.2 Gen 1/Gen 2), 20 Gbps (USB 3.2 Gen 2×2), 40 Gbps (USB4/Thunderbolt) and even 80 Gbps (USB4 v2).
- Load power: USB Power Delivery at 20W, 60W, 100W and up 240 W (EPR)High-power cables typically integrate E-mark chip.
- USB-IF Certification: indicates strict compliance with the standard and greater compatibility.
- ConnectorsA USB-C to USB-C cable retains more features; USB-A to USB-C cables limit speed and features.
- Length and constructionThe longer the line, the greater the losses; look for good gauge, nylon braiding, and bend resistance tests. weight It can guide you (more copper), but send the technical data sheet.
- Brands and labelingAvoid cables without clear speed/power specifications; logos like “SS 10/20” or the Thunderbolt beam help.
How to identify if your cable is for charging only or also for data
Besides testing a transfer by connecting to a computer, there are some useful tips. check the packaging Look for “USB 3.x”, “USB4”, “SS 10/20” or Thunderbolt; if it doesn't indicate a speed, it's probably a basic USB port. Some systems display messages when the cable is slow or incompatible. You can also use a multimeter for continuity or a cable tester Check for the presence of data lines (D+/D− and SuperSpeed pairs). Remember that power bank cables sometimes they only charge even though they seem normal.
Compatibility, typical problems, and security
Even if the connector is the same, the experience depends on the slower deviceIf one end only supports USB 2.0, a bottleneck will be created. There are also common issues: monitors that don't turn on due to using a cable without a USB 2.0 connector. Video Alt modeMobile phones that charge slowly due to lack of PD, or unstable connections due to excessive length.
Evita magnetic adapters Low quality: they may lack short-circuit protection or safe disconnection. Beware of old cablesBesides being slower, they may offer fewer electrical safeguards. And remember that USB-A to USB-C cables typically have limited capabilities compared to USB-C to USB-C cables.
The best practice is to combine a certified cable with a charger appropriate for the power of your equipment and, if you have any doubts about a cable, Verify it with USBCheck And, if possible, with a physical tester. This reduces risks and ensures you're taking full advantage of the available speed and power.
Choosing the right USB-C cable and checking it when necessary prevents surprises: protect your device, optimizes the load y guarantees maximum data speedWith clear specifications, certification, and utilities like USBCheck, making an informed decision becomes much easier.
