The dss ds-mr24 could also be a misspelling of D-Link's DSS-24, a 24-port Fast Ethernet network switch.
The tool-less design of the drive trays and the hot-swap capabilities mean that IT staff can replace failed drives in seconds. This minimizes the Mean Time To Repair (MTTR), a critical metric for SLAs. dss ds-mr24
Automatic hot gas defrost for the refrigerator, minimizing service needs. The dss ds-mr24 could also be a misspelling