Memory Case 2,5" USB 3.0 Capacity:500 GB | 750 GB | 1 TB Form factor:2,5" Colour:black | white Material:plastic Power supply:Super Speed USB port 3.0 Max. reading transfer rate:85,00 MB/s (570 x) Max. writing transfer rate:75,00 MB/s (503 x) Accessories:USB 3.0 cable (downwardly compatible)