NRICO Portable External Hard Drive USB 3.0 HDD 2.5inch Storage Compatible for PC, Mac, Desktop,PS4 Features: Sleek, Thin, and Metal, easy-to-use, highly flexible protection for your files Adopts imported extraordinary space steel material Delivers handy portable storage Easy to take wherever you go USB 3.0-powered portable add-on storage, compatible Plug and play, easy to use with no software to install Provides ample storage space for your music, movies and other files Internal shock sensor and ramp loading technology protects your drive and data Support system: 98SE, ME, 2000,Vista, WIN7,WIN8,win10?MAC Specifications: Hard Drive Type:2.5" HDD USB Interface:USB 3.0 Disk Rotational Speed:5400rpm 3 Years Warranty Package includes: USB 3.0 External Hard Drives USB 3.0 cable*1 About Capacity: Hard disk vendors are using decimal arithmetic: 1MB = 1000KB, 1G = 1000MB calculated But the operating system is using binary arithmetic: 1MB = 1024KB, 1GB = 1024MB. So there are some differences between display capacity and nominal capacity of hard disk products. However, this is allowed to exist. Please do not doubt his authenticity. 160GB ? 149GB 250GB ? 232GB 320GB ? 298GB 500GB ? 465GB