Preformatted and ready to go, WD Elements USB 2.0 external hard drives make it possible to add reliable, high capacity storage instantly to your PC or Macintosh computer.
Plain, simple, reliable add-on storage. This external USB 2.0 drive is preformatted for immediate use. Simply plug it in to a USB port and you've got instant storage your PC or Macintosh.
Serial Bus Transfer Rate (USB 2.0): 480 Mbits/s (Max)
Capacity: 640 GB
Interface: USB 2.0
Height: 8.02 Inches (Max)
Length: 1.42 Inches (Max)
Width: 4.90 Inches (+/- 0.010 inch)
Weight: 2.24 Pounds
Operating: 41 F to 95 F
Non-operating: -4 F to 149 F