"0.7""2.5""3 Year3.2""5""500 GB5400 rpm640 MBps (5 Gbps)7.20 oz8 MBOne plus one is greater than two. Transcend's StoreJet 25M3 portable hard drive combines the advantages of Transcend's award-winning shockproof StoreJet M series and the next-generation SuperSpeed transfer rates of USB 3.0, allowing users to enjoy ultra-fast file transfers and the highest level of anti-shock protection. Besides its outstanding combination of super fast transfer speeds and extra-rugged anti-shock design, the StoreJet 25M3 is equipped with an extremely convenient One Touch auto-backup button. Now you can instantly backup, synchronize and copy large files without having to waste precious time waiting for the transfer to complete.USB 2.0Plug n PlayExternalHard DriveM3MacPCSATAStoreJetStoreJet M3StoreJet M3 TS500GSJ25M3 Hard DriveTS500GSJ25M3TranscendTranscend Information, IncUSB 3.0http://www.transcendusa.com"