BLUF
The USB-C cable seems to have become the default for charging and data transfer. But what can confuse the end user is that every USB-C cable looks like any other USB-C cable, which can lead to problems.Summary
This article by Adrian Kingsley-Hughes, writing for ZDNet, makes the following points:
- USB-C is versatile, allowing for power transfer up to 100W and data speeds of 10Gbps.
- Not all USB C ports and cables are the same.
- Your smartphone might come with a 20W USB-C charger, but if you connect that cable to a 140W USB-C charger and use that to connect to your laptop, it could—worst case scenario—result in a fire.
- E-Mark (Electronically Marked) is a protocol controller designed to help.
- The idea is that USB-C cables could be electronically tagged with their power rating and data transfer rates.
- Tagging could help prevent power overloading when charging your device.
References
Recent Runway Posts related to this topic:
References from the Web:
- NOV 2020 Why It Matters Which Charger You Use for Your Phone—Wired
- APR 2022 Is Fast Charging Your Smartphone Bad for Its Battery?—How to Geek
- JUN 2022 How USB Charging Works, or How to Avoid Blowing Up Your Phone—Extreme Tech