Here are all of the models currently in the database for this manufacturer and drive width. Models are sorted into sections by platter density.

Some tips:

The total capacity of each individual model is shown beside each model number.
A platter-head ratio is shown next to the total capacity tag in brackets. It works very simply: a (3/6) ratio indicates three disks and six read/write heads. Models that "waste" some amount of their actual total capacity in order to fit into certain capacity brackets (such as a 320GB unit based on one 500GB platter and two heads) are marked accordingly as [short-stroked].
Miscellaneous details of possible interest (unusual rotational speeds, strange marketing decisions, and so on) are noted if deemed necessary.
Historic Toshiba mobile HDDs are listed on this page. Assume a 9.5mm thickness for all families lacking a z-height tag. Newer models can be found on this page.


This section was last updated on 03/26/2019.


2.17GB/platter Section (all drives under here use platters that can hold 2.17GB of data apiece.)

09MAF (4200RPM, 512KB cache, ATA-33 interface, 6.35mm z-height)

MK2109MAF 2.17GB (1/2)


09MAT (4200RPM, 512KB cache, ATA-33 interface, 8.45mm z-height)

MK2109MAT 2.17GB (1/2)
MK3209MAT 3.25GB (2/3)
MK4309MAT 4.33GB (2/4)


09MAV (4200RPM, 512KB cache, ATA-33 interface, 12.5mm z-height)

MK6409MAV 6.49GB (3/6)


10MAF (4200RPM, 512KB cache, ATA-33 interface, 6.35mm z-height)

MK2110MAF 2.17GB (1/2)


10MAT (4200RPM, 512KB cache, ATA-33 interface, 8.45mm z-height)

MK2110MAT 2.17GB (1/2)
MK4310MAT 4.33GB (2/4)



3.25GB/platter Section (all drives under here use platters that can hold 3.2GB of data apiece.)

11MAT (4200RPM, 512KB cache, ATA-33 interface, 8.45mm z-height)

MK3211MAT 3.25GB (1/2)
MK6411MAT 6.49GB (2/4)


12MAT (4200RPM, 512KB cache, ATA-33 interface, 8.45mm z-height)

MK3212MAT 3.25GB (1/2)
MK6412MAT 6.49GB (2/4)



4.10-4.33GB/platter Section (all drives under here use platters that can hold 4.10-4.33GB of data apiece.)

13MAT (4200RPM, 512KB cache, ATA-33 interface, 8.45mm z-height)

MK4313MAT 4.33GB (1/2)
MK8113MAT 8.19GB (2/4)



6.0-6.4GB/platter Section (all drives under here use platters that can hold 6.0-6.4GB of data apiece.)

14MAP (4200RPM, 1MB cache, ATA-66 interface)

MK6014MAP 6.0GB (1/2)
MK6414MAP 6.4GB (1/2)


14GAP (4200RPM, 1MB cache, ATA-66 interface)

MK1214GAP 12GB (2/4)


14GAV (4200RPM, 1MB cache, ATA-66 interface, 12.5mm z-height)

MK1814GAV 18.1GB (3/6)


15MAP (4200RPM, 1MB cache, ATA-66 interface)

MK6015MAP 6.0GB (1/2)



10GB/platter Section (all drives under here use platters that can hold 10GB of data apiece.)

16GAP (4200RPM, 1MB cache, ATA-100 interface)

MK1016GAP 10GB (1/2)
MK1516GAP 15GB (2/3)
MK2016GAP 20GB (2/4)


17GAP (4200RPM, 2MB cache, ATA-100 interface)

MK1017GAP 10GB (1/2)
MK2017GAP 20GB (2/4)


17GAS (4200RPM, 2MB cache, ATA-100 interface)

MK2017GAS 20GB (2/4)
Note: Replaces the 17GAP's ball bearings with FDBs.



15-16GB/platter Section (all drives under here use platters that can hold 15-16GB of data apiece.)

17MAP (4200RPM, 2MB cache, ATA-100 interface)

MK6017MAP 6.0GB (1/1 [short-stroked])


17GAP (4200RPM, 2MB cache, ATA-100 interface)

MK1517GAP 15GB (1/2)
MK3017GAP 30GB (2/4)


17GAS (4200RPM, 2MB cache, ATA-100 interface)

MK1517GAS 15GB (1/2)
MK3017GAS 30GB (2/4)
Note: Replaces the 17GAP's ball bearings with FDBs.


20GAP (4200RPM, 2MB cache, ATA-100 interface)

MK1620GAP 16GB (1/2)
Note: These appear to be "industrial" or "vehicle"-type rugged HDDs. Pre-IBM Hitachi had a similar counterpart, the DK23DA-16N. Both have an unusual 16GB capacity, and it's unclear whether short-stroking is involved or if the platters actually are 16GB in capacity.



20-25GB/platter Section (all drives under here use platters that can hold 20-25GB of data apiece.)

18GAP (4200RPM, 2MB cache, ATA-100 interface)

MK1018GAP 10GB (1/1)
MK2018GAP 20GB (1/2)
MK3018GAP 30GB (2/3)
MK4018GAP 40GB (2/4)


18GAS (4200RPM, 2MB cache, ATA-100 interface)

MK1018GAS 10GB (1/1)
MK2018GAS 20GB (1/2)
MK3018GAS 30GB (2/3)
MK4018GAS 40GB (2/4)
Besides a few obvious exterior differences, FDBs instead of ball bearings and some seek time improvements, there is not much to differentiate between the older 18GAP and newer 18GAS series of drives.


19GAX (5400RPM, 16MB cache, ATA-100 interface)

MK1019GAX 10GB (1/1)
MK2019GAX 20GB (1/2)
MK3019GAX 30GB (2/3)
MK4019GAX 40GB (2/4)


21GAS (4200RPM, 2MB cache, ATA-100 interface)

MK2021GAS 20GB (1/2)
MK4021GAS 40GB (2/4)


24GAY (7200RPM, 16MB cache, ATA-100 interface)

MK5024GAY 50GB (2/4)
Note: One of the first 7200RPM laptop drives, together with post-IBM Hitachi's Travelstar 7K60.


27GAC (4200RPM, 8MB cache, ATA-100 interface, for industrial/vehicle)

MK2027GAC 20GB (1/2)



30GB/platter Section (all drives under here use platters that can hold 30GB of data apiece.)

21GAS (4200RPM, 2MB cache, ATA-100 interface)

MK3021GAS 30GB (1/2)
MK6021GAS 60GB (2/4)


22GAX (5400RPM, 16MB cache, ATA-100 interface)

MK6022GAX 60GB (2/4)


23GAS (4200RPM, 2MB cache, ATA-100 interface)

MK2023GAS 20GB (1/2 [short-stroked])


25GAS (4200RPM, 8MB cache, ATA-100 interface)

MK3025GAS 30GB (1/2)


26GAX (5400RPM, 16MB cache, ATA-100 interface)

MK3026GAX 30GB (1/2)


29GAC(E) (4200RPM, 8MB cache, ATA-100 interface, for industrial/vehicle)

MK3029GAC 30GB (1/2)
MK3029GACE 30GB (1/2)
Note: "E" suffix signifies -16 to 70C operating temperature; the non-"E" can handle -20 to 85C.



40GB/platter Section (all drives under here use platters that can hold 40GB of data apiece.)

25GAS (4200RPM, 8MB cache, ATA-100 interface)

MK4025GAS 40GB (1/2)
MK6025GAS 60GB (2/3)
MK8025GAS 80GB (2/4)


26GAX(B) (5400RPM, 16MB cache, ATA-100 interface)

MK4026GAX 40GB (1/2)
MK4026GAXB 40GB (1/2)
MK6026GAX 60GB (2/3)
MK6026GAXB 60GB (2/3)
MK8026GAX 80GB (2/4)
Note: It's not clear what the "B" suffix signifies. Possibly extended-reliability, as these models often have the IBM eServer logo on their labels.


32GAX (5400RPM, 8MB cache, ATA-100 interface)

MK4032GAX 40GB (1/2)
MK6032GAX 60GB (2/3)
MK8032GAX 80GB (2/4)


32GSX (5400RPM, 8MB cache, SATA-150 interface)

MK4032GSX 40GB (1/2)
MK6032GSX 60GB (2/3)
MK8032GSX 80GB (2/4)


39GSX (5400RPM, 8MB cache, SATA-150 interface)

MK4039GSX 40GB (1/2)


36GAC(E) (4200RPM, 8MB cache, ATA-100 interface, for industrial/vehicle)

MK4036GAC 40GB (1/2)
MK4036GACE 40GB (1/2)
Note: "E" suffix signifies -16 to 70C operating temperature; the non-"E" can handle -30 to 85C.


50GAC(E) (4200RPM, 8MB cache, ATA-100 interface, for industrial/vehicle)

MK4050GAC 40GB (1/2)
MK4050GACE 40GB (1/2)
Note: "E" suffix signifies -20 to 70C operating temperature; the non-"E" can handle -30 to 85C.



50GB/platter Section (all drives under here use platters that can hold 50GB of data apiece.)

31GAS (4200RPM, 8MB cache, ATA-100 interface)

MK1031GAS 100GB (2/4)


32GAX (5400RPM, 8MB cache, ATA-100 interface)

MK1032GAX 100GB (2/4)


32GSX (5400RPM, 8MB cache, SATA-150 interface)

MK1032GSX 100GB (2/4)



60GB/platter Section (all drives under here use platters that can hold 60GB of data apiece.)

33GAS (4200RPM, 8MB cache, ATA-100 interface)

MK1233GAS 120GB (2/4)


34GAX (5400RPM, 8MB cache, ATA-100 interface)

MK6034GAX 60GB (1/2)
MK8034GAX 80GB (2/3 [short-stroked])
MK1234GAX 120GB (2/4)


34GSX (5400RPM, 8MB cache, SATA-150 interface)

MK4034GSX 40GB (1/2 [short-stroked])
MK6034GSX 60GB (1/2)
MK8034GSX 80GB (2/3 [short-stroked])
MK1034GSX 100GB (2/4 [short-stroked])
MK1234GSX 120GB (2/4)


37GSX (5400RPM, 8MB cache, SATA-300 interface)

MK6037GSX 60GB (1/2)
MK1237GSX 120GB (2/4)


50GAC(E) (4200RPM, 8MB cache, ATA-100 interface, for industrial/vehicle)

MK6050GAC 60GB (1/2)
MK6050GACE 60GB (1/2)
Note: "E" suffix signifies -20 to 70C operating temperature; the non-"E" can handle -30 to 85C.



80GB/platter Section (all drives under here use platters that can hold 80GB of data apiece.)

37GSX (5400RPM, 8MB cache, SATA-300 interface)

MK8037GSX 80GB (1/2)
MK1637GSX 160GB (2/4)


46GSX (5400RPM, 8MB cache, SATA-300 interface)

MK8046GSX 80GB (1/2)
MK1646GSX 160GB (2/4)


49GSY (7200RPM, 16MB cache, SATA-300 interface)

MK8049GSY 80GB (1/2)
MK1249GSY 120GB (2/3)
MK1649GSY 160GB (2/4)


51GSY (7200RPM, 16MB cache, SATA-300 interface)

MK8051GSY 80GB (1/2)
MK1251GSY 120GB (2/3)
MK1651GSY 160GB (2/4)


50GAC(E)(Y) (4200RPM, 8MB cache, ATA-100 interface, for industrial/vehicle)

MK8050GAC 80GB (1/2)
MK8050GACE 80GB (1/2)
MK8050GACY 80GB (1/2)
Note: "E" suffix signifies -20 to 70C operating temperature; the non-"E" can handle -30 to 85C. The "Y" suffix appears to point both to -20 to 70C operating temperature as well as suitability for 24x7 power-on operation.


57GSC (4200RPM, 8MB cache, SATA-150 interface, for industrial/vehicle)

MK8057GSC 80GB (1/2)



100-125GB/platter Section (all drives under here use platters that can hold 120-125GB of data apiece.)

35GSS (4200RPM, 8MB cache, SATA-150 interface)

MK2035GSS 200GB (2/4)


46GSX (5400RPM, 8MB cache, SATA-300 interface)

MK1246GSX 120GB (1/2)
MK2046GSX 200GB (2/4)
MK2546GSX 250GB (2/4)


49GSY (7200RPM, 16MB cache, SATA-300 interface)

MK2049GSY 200GB (2/4)


51GSY (7200RPM, 16MB cache, SATA-300 interface)

MK2051GSY 200GB (2/4)

Posted by RML527 at 3:00 PM
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