List of Fujitsu model number codes
This is a list of model number codes used on Fujitsu consumer hard drive models.
Prefix letter: M
All Fujitsu model numbers begin with M.
Second letter: Business unit
The second letter denotes the business unit of the drive.
| Code | Business unit | Notes |
|---|---|---|
| A | Enterprise 2.5" | |
| B | Enterprise 2.5" | Used as overflow for A once its revisional digits were exhausted. |
| E | AV drives | |
| H | Hornet | |
| J | Hornet | Used as overflow for H once its revisional digits were exhausted. |
Third letter: Revision
The third digit stores the revision of the drive relative to the second digit. If this digit has exhausted all possible options from A to Z, the second digit is incremented by one letter.
Fourth digit: Form factor
The fourth digit indicates the form factor of the drive; being 2 for 2.5" drives, and 3 for 3.5" drives.
Fifth, sixth and seventh digits: Capacity
The fifth, sixth and seventh digits indicate the capacity of the drive, in gigabytes.
Eight digit: Interface and SED support
The eighth digit indicates the interface. Certain letters may also indicate SED support.
| Suffix | Interface | Extras | Notes |
|---|---|---|---|
| A | PATA | ||
| B | SATA | ||
| C | SATA | Self encrypting drive | |
| S | SATA | Only prototypes carried this code. |
Ninth digit: Spindle speed and other options
The letter suffix indicates the interface, spindle speed and other options of the drive.
| Suffix | Spindle speed | Extras |
|---|---|---|
| C | 4,200 RPM | Industrial/vehicle applications |
| K | 7,200 RPM | 24/7 operation |
| H | 5,400 RPM (2.5") 7,200 RPM (3.5") |
|
| J | 7,200 RPM | |
| R | 4,200 RPM | 24/7 operation |
| S | 5,400 RPM | 24/7 operation |
| T | 4,200 RPM (2.5") 5,400 RPM (3.5") |
Suffixes
Any drive model can have any number of suffixes applied, which denote additional features.
| Suffix | Meaning | Notes |
|---|---|---|
| E | 7,200 RPM | This suffix is in addition to ninth letters that indicate 7,200 RPM. Only seen on 3.5" drives. |
| FFS | Free-fall sensor | |
| G1 | SATA 1.0 (150 MB/s) | Without any overriding suffixes, all 5,400 RPM models prior to the MHZ series are SATA 1.0. |
| G2 | SATA 2 (300 MB/s) | Without any overriding suffixes, all 5,400 RPM models starting with the MHZ series as well as all 7,200 RPM models are SATA 2. |
| PL | Unknown |