CMS Products 500GB ABS External Hard Drive USB 2.0 Model V2ABS-CELP-500 RPM: 5400 RPM Form Factor: 2.5 Cache: 8MB Average Seek Time: 12ms Dimensions: 1.1 x 5.0 x 3.0 Weight: 0.44 lbs. Package Contents: ABS-Secure Hard Drive with 256-bit Encryption , Cables , Software CD , Quick Start Guide Parts: 3 years limited