Why 3.5" External Hard Disk Drive Required External Power Supply and 2.5" Not?
2.5″ laptop drives are designed to run with a lot less power than 3.5″ desktop drives because they’re usually used on battery power. They’re slower, but a lot less power-hungry. If the external enclosure you’re buying contains a 2.5″ drive then the amount of power that can be delivered over… Continue reading