1 Terabyte (TB) 7200RPM External USB Harddisk Drive: That's Big!
The Lacie 1 Terabyte (TB), 7200 rpm external USB 2.0 drive is a massive storage device in a small portable form factor. Featuring a high speed USB 2 interface, and a 8MB cache the hard disk is capable of transfer speeds of 480 Mbits/sec (60 MB/sec) and a sustained data transfer rate of 34 MB/sec all while a smart fan technology keeps the drive cool and silent.
The 5.25" hard drive is compatible with Windows and Mac OS X, and weighs about 2.1 kgs, which makes it quite portable and useful for data backup and restore at site kind of applications. It's available for US $683.99 from here.