EF52R Solid State Disk Drive
From Computer History Wiki
| EF52R | |
| Manufacturer: | Digital Equipment Corporation |
|---|---|
| Drive Controller(s): | all DSSI Controllers |
| Capacity: | 205 Mbytes (formatted) |
| Transfer Rate: | 4.0 Mbytes/sec |
| Average Access Time: | 0.25 msec |
| Start Time: | < 2 min |
| Physical Size: | 5.25" full height |
The EF52R is the medium size drive of Digital Equipment Corporation’s first generation of Solid State Disk Drives packaged in a full-height, 5 1⁄4-inch form factor. The EF52R ISE provides non-volatility of data by a data retention system including:
- Power sensing logic
- An internal winchester magnetic disk drive
- A battery to power the EF52R while dumping data to the winchester disk
