Silicon Power Diamond D03 Pocket Size 500GB USB 3.0 External Hard Drive, Black (SP500GBPHDD03S3K) SuperSpeed USB 3.0 compliant and backwards compatible with USB 2.0 High transferring rate up to 5 Gb/sec Solid aluminum metal structure and scratch resistant surface Power saving sleep mode LED indicates power on and data transfer activity New version of SP Widget free download software, providing 7 major back-up and security functions (256-bit AES file & folder encryption)