Difference between revisions of "EF52R Solid State Disk Drive"

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Revision as of 08:01, 19 August 2023


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

External links