VERBATIM HDD 2.5" 4 TB Store 'n' Go Portable Hard Drive USB 3.0, Black Special Features: Colours available: Black, Silver, White, Red & Blue Capacities available: 500GB, 1TB & 2TB High speed, high capacity storage. A fast & safe solution to expand storage or backup files USB 3.0 SuperSpeed - for ultra fast data transfer Nero Backup Software Energy Saving Software USB REC & PLAY* - supports USB recording/ playback 2 year limited warranty** System requirements: PC or Mac with USB 3.0 Windows XP / Vista / Windows 7 & 8 Mac OS X 10.4 or higher Pack Contents: Portable Hard Drive / USB 3.0 Cable / Nero Backup Software / Green Button Energy Saving Software / Verbatim Formatter / Quick Start Guide / User Guide (pre-loaded on the drive).