EF52R Solid State Disk Drive
From Computer History Wiki
(Redirected from EF52R)
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 DEC’s first generation of solid state disks 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
Apart from the DSSI interface, the EF52R disk drive is identical to the EZ52R Solid State Disk Drive.