Western Digital WDBAAA6400ASL 2.0 640GB Silver external hard drive

WDBAAA6400ASL, 640GB, 480Mb/s, USB2.0, 200g, Silver Our smallest portable drive ever.
We designed a smaller, high-quality, integrated USB hard drive inside a stylish package. With a variety of fun colors, there's sure to be one to suit your style.
See your life safe in one place.
WD SmartWare software - A visual control center with a single screen view of all your data. From it you can back up, retrieve, and secure your files.
Password protection.
An extra level of security with password protection and 256-bit hardware-based encryption.