Formatted capacity (512 bytes/sector)* 250 Gbytes Recording density 1,049 kbits/in max Internal data transfer rate 1,212 Mbits/sec max Cache buffer 8 Mbytes Height (max) 20.20 mm (0.794 inches) Width (max) 101.6 mm (4.000 inches) Length (max) 146.99 mm (5.787 inches) Weight (typical) 382 grams