WD Elements desktop storage with USB 3.0 offers reliable, add-on storage, ultra-fast data transfer rates and universal connectivity with USB 3.0 and USB 2.0 devices. The sleek design features up to 3 TB capacity, renowned WD quality and it includes a free trial of WD SmartWare Pro backup software for local and cloud backup. Main Features Transfer files faster than ever USB 3.0 and USB 2.0 compatibility Plug-and-play Hard Disk Disk Size    3.5 Inches Disk Capacity    4000 GB Drive Interface    SATA Electrical Electrical Voltage    100 to 240 V AC Electrical Frequency    50 to 60 Hz Environmental Operating Temperature    5 to 35 °C Non Operating Temperature    -20 to 65 °C Physical Case Colour    Black Form Factor    External Hard Disk Drive Enclosure type    External Colour    Black Width    4.8 cm Depth    13.5 cm Height    16.5 cm Weight    0.95 kg Barcode    718037824925 Key Features Network Ready    No Main Colour    Black Solid State Drive    No Bundled Backup Software    Yes Power Source    Mains Powered Disk Form Factor    3.5 e-SATA    No RJ45    No Firewire 400    No Firewire 800    No WiFi    No Thunderbolt    No USB 3.0    Yes USB 2.0    No Interfaces/Ports USB Support    USB3.0 USB 2.0/ USB3.0    No Warranty Warranty    1 Year