Western Digital, $149.99 (1TB) wd.com ★★★★ Western Digital’s latest My Passport creation, the Ultra, has a lot of mod-cons but one that is particularly useful and unusual. It offers built-in Dropbox support so you can back up files to the online storage service directly from its software. The drive itself offers one terabyte of hard drive storage, quiet operation, a slender, 1.5cm profile and USB 3.0 speeds. It is also Windows 8-ready, though Apple Mac users must reformat the drive to use it at all. It comes with a carry bag, as well as a longer than usual USB cable.