Why do some USB-C cables have specific ends for devices and power?

The reason for specific ends is to clarify which device is the host when connecting two devices that both support charging. For example, if both connected devices can charge each other, having designated ends helps avoid confusion about which one should be providing power.

A lot of gadgets like my iPad can switch between being a host or a device depending on the situation. When I connect my iPad to a USB thumb drive, it powers the drive. But if I plug it into a wall charger, it takes power instead. Having a cable with labeled ends resolves the uncertainty of who charges whom. Plus, this type of cable is often power-only, which can be safer in public charging spots, as some chargers might have hidden tech that can compromise your device.

Honestly, I’ve always plugged my USB-C cables in without worrying about the ends and they worked fine. From what I found out, most USB-C cables are designed to be universal, so having specific device and power ends might not comply with the standard. It raises a question about how necessary they really are.

These kinds of cables are super handy! For instance, if you have a laptop with 51% battery and a power bank at 49%, connecting them might lead to the laptop draining the power bank instead of charging. I recommend the Anker Splitter Cable; it guarantees power direction and prevents any accidental reverse charging.