Transcend's StoreJet 25M3C ruggedized external hard drive features the USB 3.1 Gen 1 interface and a USB Type-C port for unmatched transfer rates, and comes with both a USB Type-C cable as well as a Type-C to Type-A cable for max compatibility across devices. Supreme shock-resistant qualities ensure superior protection for data stored on the drive. USB Type-C connector The StoreJet 25M3C external hard drive comes with the latest USB Type-C connector for greater ease of use. It is reversibly-oriented, and compatible with next-generation PC devices that feature USB Type-C ports. Lightning-fast transfer speeds The StoreJet 25M3C external hard drive is equipped with the USB 3.1 Gen 1 interface with the support of UASP (USB Attached SCSI Protocol), providing lightning-fast transfer rates of up to 5 Gbps. Excellent anti-shock protection The StoreJet 25M3C features a three-stage shock protection system that meets US military drop-test standards to fully protect data stored on the drive. The three-stage shock protection system includes a silicone rubber case, an internal shock-absorbing suspension damper, and a reinforced hard casing. One touch auto backup The StoreJet 25M3C is equipped with a one touch auto-backup button that instantly backs up your data with just one press. The button also enables you to reconnect the hard drive to your PC without the need to unplug and reinsert it.