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.

we found it easily powered through tasks at lightning speed compared to lower capacity external hard drives. We reviewed the 12TB model, which showed average read/write speeds of 250MB/s.

This guide makes sense of these essential external hard drive characteristics and ... populated by two 12TB drive mechanisms). In the case of these and single-platter-drive products, you're ...