WD 4TB 3,5My Book Essential
Detail Specification:

• Software WD SmartWare Automatic Backup Software
• Brand WD
• Model My Book
• Type Desktop External Hard Drive
• Encryption Yes
• Part Number WDBFJK0040HBK
• Connectivity USB 3.0
• OS Supported Windows: XP, Vista, 7, 8, Mac OS X 10.6.5 (Requires Reformatting)
• Form Factor Desktop
• Transfer Speed USB 2.0: 480 Mb/s, USB 3.0: 5 Gb/s
• Color Black
• Features Ultra-fast Backup and Storage, Password Protection with Hardware Encryption, Formatted NTFS
• In The Box Hard Drive, Power Cord, User Manual
• Weight 1180 g
• Dimensions 165 x 135 x 48 mm
• Model Name My Book Essential
• Size 3.5 inch
• Warranty Summary 2 Years Limited Warranty
• Not Covered in Warranty Physical Damage