Eagle Tech 2.5-Inch 320 GB USB 3.0 SuperSpeed 5Gbps Portable External Hard Drive ET-CS2320FSU3-BK SuperSpeed USB 3.0 (backward compatible with USB 2.0) Up to 5Gbps via USB 3.0 (up to 10x faster than USB 2.0) USB powered (no bulky AC adapter) 2 graffiti face plates Preformatted NTFS (plug-n-play ready)