just try to calculate density of that piece with dimensions given (i.e. mm3). Thus, it is heavy as a black hole.

when using usb power, sometimes users (especially notebook users) run out of usb connections, so add additional power cable (with ac/dc converter) as a criteria for notebook users.

Disappointing review since it didn't address the backup software. I've read elsewhere that the software will only back up user files, not system files. True? False? Who knows. The software is a feature and integral part of the drive, so you should have reviewed that at well.