Fantom Drives TFDU25072 250GB USB 2.0 Titanium Hard Drive Capacity: 250GB Interface Type : Hi-speed USB Buffer Size: 2 MB; Seek Time: 8.5 ms (average) Interface Transfer Rate : 480 Mbps:Data Transfer Rate: 40 MB/s Expansion / Connectivity Interface : 1 x Hi-speed USB - 4 pin USB Type B