Laptop drive almost full? Need to back up your photos? Desktop-size and portable platter storage has never been cheaper. Our deep-dive reviews help you track down the right external hard drive.

This is a 3.5-inch Seagate Barracuda ST100DM010 1TB internal hard drive for PCs. It comes with a SATA 6Gb/s interface and it has 64MB of cache memory with multi-tier caching support. Since it’s ...