This 8-inch disk unit was marketed as an OEM disk unit for office computer manufacturers.
Since the unit employed a voice coil motor system as a head positioning mechanism, instead of the previous step motor, seek time was greatly increased to 25ms.
The HDA (Head Disk Assembly) had a completely sealed structure, and thus had outstanding environmental resistance and required no periodic maintenance.
| Completion date | 1980 |
|---|---|
| Memory capacity per spindle | 47Mbyte |
| BPI | 7,300BPI |
| TPI | - |
| Surface recording density | - |
| Disk size/quantity | 8-inch |
| Head type/number per actuator | - |
| Average access time | 25ms |
| Disk rotation speed | 3,521rpm |
| Data transfer speed | 0.9Mbyte/s |
