MiniPro&trade; 500GB External eSATA 6Gb/s + USB 3.0 Portable Solid State Hard Drive SSD USB 3.0 (Up to 500 MB/Sec); eSATA 6.0 Gbit/s (Up to 600 MB/sec) Rock-solid durability - No moving parts, able to withstand high impact (1500Gs operating shock) Asmedia 1153E & 1456 high-performance integrated controller with UASP USB-powered, no external power supply needed Backed by a 3 year warranty