How to read the Travelstar model number
HTS722020K9A300 = 200 GB, SATA 3 Gb/s
H = Hitachi
T = Travelstar
S = Standard (vs C for Compact)
72 = 7200 RPM
20 = Full capacity — 200 GB
20 = Capacity this model, 20 =200 GB (16 = 160 GB,
12 = 120 GB, 10 = 100 GB, 80 = 80 GB)
K = Generation code
9 = 9.5mm z-height
A3 = Interface, SATA 3 Gb/s (SA = 1.5 Gb/s)
0 = Reserved
0 = Reserved