Toshiba's MQ01ABD-V series of 5,400 rpm 2.5-inch HDDs deliver up to 1 TB of storage capacity. 1 Terabyte (TB) storage capacity 2.5-inch, SATA/300 interface 5400 RPM spindle speed 8 MB buffer This item must be installed and cannot be used as an external memory. What's in the box 1 x 1TB Internal Hard Drive