See that link to know the Toshiba HDD Model Number Identification :
http://www.storage.toshiba.eu/index.php?id=3&sid=8&pid=242&msid=18&la=en
Toshiba HDD Model Number Identification
This shows how to identify the capacity, form factor and read/write head technology of the recent Toshiba Hard Disk Drives:
MKxxyyABC
xx = Capacity
yy = Read/Write head technology
A = Indicates format of capacity (xx)
B = Interface type (A = “IDE”, P = “PCMCIA”)
C = Form factor
The following Example shows the different meanings of the single letters and numbers:
MK 6 4 1 1 M A V
Form factor
C = Automotive
N = 19 mm
T = 8.45 mm
V = 12.5 mm
F = 6.35 mm
P = 9.5 mm
L = 5.0 mm
H = 8 mm (1.8”)
S = 9.5 mm
X = 9.5 mm with 5.400 rpm (Fluid Dynamic Bearing)
Y = 9.5 mm with 7.200 rpm (Fluid Dynamic Bearing)
MK 6 4 1 1 M A V
A = ATA interface
L = Low power
P = PCMCIA interface (1.8’’ HDD)
S = Serial ATA interface
MK 6 4 1 1 M A V
M = Capacity < 10Gb
G = Capacity > 10Gb
MK 6 4 1 1 M A V
Read/Write Head technology
01 / 03 / 05 = MR (= GMR if 1.8’’ HDD)
02 = TFH (= GMR if PCMCIA interface)
04 / 06 / 10 / 12 = DSMR
07 = Perpendicular recording (1.8’’ HDD)
08 = New Form Factor, flexfoil interface connector (1.8’’ HDD)
09 / 11 / 14 / 15 / 16 / 17 / 18 / 19 / 21 / 23 / 25 etc. = GMR
MK 6 4 1 1 M A V
Capacity
If MAx: 14 = 1.4GB, 21 = 2.1GB, 64 = 6.4GB etc.
If GAx: 10 = 10Gb, 18 = 18Gb, 40 = 40Gb etc.
Note:
MR = Magneto-Resistive Head
TFH = Thin Film Head
GMR = Giant MR Head
DSMR = Dual Stripe MR Head
Further examples are:
MK6412MAT
6.4 GByte capacity, 8.45 mm form factor using DSMR read/write head technology
MK4026GAX
40 GByte capacity, 9.5 mm form factor with FDB motor at 5,400 rpm
MK1003MAV
1.0 GByte capacity, 12.5 mm form factor using MR read/write head technology
MK8032GSX
80 GByte capacity, 9.5 mm form factor, SATA interface with FDB motor at 5,400 rpm
How to encode a Toshiba Hard Disk Drive Serial Number?
The Toshiba serial number (S/N) includes details of the date of manufacture. The first digit of the serial number indicates the Month of manufacture and the 2nd digit indicates the Year.
Example:
M Y x x x x x x x
M = Month
Y = Year
The month digit goes from 1, for January, through to 9, for September, and then X, Y and Z, for October, November and December.
Examples:
2 8 1 7 0 0 0 1 A
2 = February
8 = 1998
3 0 5 4 4 3 0 6 T
3 = March
0 = 2000
X 9 D 7 8 3 3 1 T
X = October
9 = 1999
The remaining digits contain information about factory and production line, and some digits are reserved for a continuously running serial number.