It’s 0.41” to 0.51” tall. Topped with sandblasted, fingerprint-resistant stainless steel.

Square. And adds either between 500GB and 1TB of external storage to any MacBook.
Freecom’s Mobile Drive Sq ($150-$200/€109-€159) may come at premium prices relative to other portable hard drives, but how often do you see a sleek 4.7” square accessory like this?
Built with support for USB 2.0 and 3.0, Mobile Drive Sq packs a conventional 2.5” SATA hard disk into a unique shell that’s made from black PVC below the metal lid, running quietly without a fan or separate power adapter. Sculpted by noted German industrial designer Arman Emami, it’s packaged with a short USB cable, and offers anti-shock protection so it can survive being carried around in a bag.