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Cryptocurrency Bitcoin The Best USB-C Cables for Your Phone, Tablet, or Laptop


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Cryptocurrency Bitcoin The Best USB-C Cables for Your Phone, Tablet, or Laptop

With various standards and charging technologies at work, it is much harder than it should be to work out what a cable can do. There are a few things worth knowing when shopping.USB Standards: The Universal Serial Bus (USB) standard dates to 1996 but has seen many new standards, revisions, and connector types in the…

Cryptocurrency  Bitcoin The Best USB-C Cables for Your Phone, Tablet, or Laptop

Cryptocurrency Bitcoin

With various standards and charging technologies at work, it is much harder than it should be to work out what a cable can do. There are a few things worth knowing when shopping.

USB Standards: The Universal Serial Bus (USB) standard dates to 1996 but has seen many new standards, revisions, and connector types in the years since. Instead of running through all of them here, we try to highlight what matters.

Connectors: While USB-C is mercifully becoming a standard connection type, you want cables with connectors that fit your existing devices. Today, that still might mean USB-A, Lightning, or even MicroUSB. Remember that the capabilities of any cable are limited to its oldest connection type.

Data: The data transfer speed is always in megabits per second (Mbps) or gigabits per second (Gbps). You’ll know the speed a cable should be capable of by the standard:

  • USB 2.0 supports 480 Mbps
  • USB 3.0 supports 5 Gbps
  • USB 3.1 supports 10 Gbps
  • USB 3.2 Gen 1 supports 5 Gbps
  • USB 3.2 Gen 2 supports 10 Gbps
  • USB 3.2 Gen 3 supports 20 Gbps
  • USB 4.0 supports 40 Gbps

Power: While cable manufacturers always list the maximum charging rate, your device will determine how much power to draw, so it’s important to know what standards it supports and combine your cable with the correct power adapter. The charging rate of a cable is measured in Watts (W). Sometimes manufacturers will list specifications on the cable in tiny print. If there’s no W listed, you can calculate it by multiplying the voltage (V) and the current (A), assuming they are listed.

USB-A ports are limited to 12 watts. USB-C ports can go up to 240 watts (they used to be limited to 100W), but this depends on the device. For example, USB-C typically delivers 18 watts to a phone. Apple’s Lightning ports can work with USB-A or USB-C cables.

Thunderbolt was a proprietary interface developed by Intel and Apple, but it’s now open for royalty-free use (still certified by Intel). With Thunderbolt 3, the standard adopted the USB-C connector and is capable of data transfer speeds up to 40 Gbps and can deliver 100 watts of power using the PD standard. Thunderbolt 4 brings various improvements mostly related to the video signal (support for two 4K displays or an 8K display). It also supports the USB 4 standard and is backward compatible with previous standards. We plan to test Thunderbolt and USB 4 cables over the next few weeks.

The Power Delivery (PD) standard is as close as we have to a common standard. A few manufacturers, like OnePlus, Oppo, and Xiaomi, still have proprietary charging standards. Then there’s Qualcomm’s Quick Charge (QC) standard, which was the most popular for phones for many years, although Quick Charge 4 supports PD. Even PD has a variant called Programmable Power Supply (PPS), which is part of the USB PD 3.0 standard. PPS allows for real-time adjustments to maximize efficiency and charge phones like Samsung’s Galaxy S22 range at up to 45W instead of the usual 18W.

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Cable Certification: There are a few different types of cable certification. When a cable is certified, that usually means it was independently tested and conforms to specific standards. It gives you, as a buyer, peace of mind that your cable performs as the manufacturer claims. Certification can be expensive, so many cable manufacturers shun it, but that doesn’t necessarily mean their cables are poor quality. The USB Implementers Forum (USB-IF) is a non-profit organization dedicated to advancing USB technology news. Run by members like Apple, Google, HP, Microsoft, and Intel, it sets specifications and offers certification. If a cable is certified by the USB-IF, it has been tested to ensure it complies with its standards. Apple has its own Made for iPhone (MFi) certification for Lightning cables.

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