In data recovery field, one of the most important things is to get the general information of the patient media, such as the model numbers.  The model number is also important if you want to find a donor drive for donor firmware, heads, PCB, etc. The following information will help to understand correctly the new Hitachi model numbers.

H F P SP TC MC x Z IF x B x

Where:
H     =     Hitachi
F     =     Product Family:

D = Deskstar
C = CinemaStar
T = Travelstar
U = Ultrastar
M = Microdrive
E = Endurastar

P     =     Series prefix:

S= Standard (default, if no series name prefix)
C = Compact
J/N = Endurastar Temperature Range
E = Enh. Availability (24×7)
T = Differentiator between two models with the same name (T7K250)

SP = Speed, expressed in Revolutions Per Minute (rpm):

36 = 3600 rpm
42 = 4200 rpm
54 = 5400 rpm
72 = 7200 rpm
10 = 10,000 rpm
15 = 15,000 rpm

TC = Top capacity available for a particular drive release:
25 = 250GB (first two significant digits)
18 = 180GB
etc…

MC = Model capacity for this specific drive:

25 = 250GB (first two significant digits)
18 = 180GB
etc…

x = Unique code

Z = z-Height:

L = 1″
S = 15mm
7 = 7 mm
9 = 9.5 mm
5 = 5 mm
8 = 8 mm

IF = Interface:

16 = Ultra 160, 68 pin
18 = Ultra 160, 80 pin
36 = Ultra 320, 68 pin
38 = Ultra 320, 80 pin
A = ATA/Entry level
A3 = Serial-ATA 3 Gbit / s
AT = ATA
CA = CE-ATA
CE = ATA (ZIF Connector)
CF = CF2 pin
CM = ATA on MMC
F2 = Fibre channel 2GB
F4 = Fibre channel 4GB
SA = Serial-ATA 1,5 GB /s
SS = Serial-attached SCSI
B     =     Feature Code assigned by business unit (e.g., cache buffer size)
x     =      Unique code

Example:
HDS722516VLAT20 – Hitachi Deskstar 7K250:

H = Hitachi
D = Deskstar
S = Standard
72 = 7200 rpm
25 = 250GB full pop capacity
16 = Unique model code
V = Unique code
L = 1″ form factor
AT = ATA
2 = Feature code (representing 2MB cache)
0 = Unique code

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