Auto Backup Automatically back up photos, videos, music & documents from your system onto your My Passport drive with the included WD Backup software. Set it to your schedule. Just pick the time & frequency. Password Protection Built-in 256-bit AES Hardware Encryption with WD Security software helps keep your content private & safe. Easily add a ???return-if-found??? message as the password prompt in case your My Passport drive ever gets lost. Even great minds like yours can accidentally leave things behind. WD Reliability WD builds drives to demanding requirements for durability, shock tolerance & long-term reliability. & we back up (pardon the pun) the trusted My Passport drive with a 3-year limited warranty. Express Yourself The sleek, vibrant design of the My Passport drive comes in a wide range of bold, beautiful colors so you can pick the one that matches your own unique, personal style. Easy to use Ready to use out of the box, you can start transferring files, saving memories & backing up right away. WD Backup & WD Security software is included to help protect your data. Specifications Storage Capacity 4 TB Encryption Standard 256-bit Host Interface USB (Universal Serial Bus) 3.0 Colour Red Drive Type External External Drive Type Portable Form Factor 2.5" Height 21.5 mm Width 81.5 mm Depth 110 mm Weight (Approximate) 250 g USB (Universal Serial Bus) data transfer rates: 480, 5000 Mbit/s USB (Universal Serial Bus) connector: Micro-USB B Maximum data transfer rate: 5000 Mbit/s Bus power:5 V Bus powered:USB In the Box Western Digital HDD External 4TB My Passport USB3 Red USB (Universal Serial Bus) Cable