USB-C cables that do not comply with the required specifications, which have been known to fry computers, smartphones and tablets, are now banned
Amazon has banned USB-C charging cables that do not comply with specifications, awhich are considered dangerous as they can damage devices they are used with and potentially cause safety risks.
The USB-C specification, which includes a reversible connector that can plug in either way up, was designed as the do-it-all cable capable of charging computers as well as smartphones, tablets and other low-power gadgets.
Amazons move sees it acting as a de facto quality control agent for the USB-C cables, helping users steer clear of much needed but sub-standard products. Many USB-C enabled devices come only with USB-C to USB-C cables, not with cables for plugging into older chargers or computers which commonly have USB-A connections.
Designed under the USB 3.1 specification, USB-C can deliver a larger amount of power than older USB cables allowing them to be used to charge computers such as Apples MacBook and Googles Chromebook, both of which require significantly more power than smartphones do.
To do so, USB-C cables have a 56k ohm resistor that allows the power supply and the device plugged into it to work out the correct power level that suits both ends of the charging party, making sure the device does not draw more power than the plug can supply.