Bipra portable external hard drive has capacity 320gb, Colour blue, Plug and Play with USB 2.0 for windows, Powered By: USB 2.0. Connection: USB 2.0, Width: 7.8cm, Depth 12.8cm, Height 1.3cm,Weight: 170g. What Hard Drive is used in this product: 320GB 2.5" Laptop Hard Drive, a sata hard drive, 9mm thick, 5400 rmp, very fast drive, 8MB buffering.