Clickfree C2 1 Terabyte (1TB) USB 3.0 2.5" External Hard Drive w/Automatic Backup (Black) Clickfree C2 1 Terabyte (1TB) USB 3.0 2.5-inch External Hard Drive General Features: Black color 1 Terabyte (1TB) capacity 2.5-inch hard drive USB 3.0 interface with attached cable Portable, external drive BackupLink - multi-computer backup Driver-free Plug and Play operation Automatic backup with scheduling 256-bit hardware-based encryption Bus-powered - no additional cable needed