SPS-BD MEM 256M 72BT DDR W/BTY

HPE SPS-BD MEM 256M 72BT DDR W/BTY (RP000090375) is a battery-backed write-cache memory module for supported HPE controller boards. Its OEM spare part number is 309522-001.

The module provides 256MB of 72-bit DDR memory for battery-backed write cache (BBWC). The battery is included, so the cache module and its battery are described as one assembly.

HPE lists this part for the 6402 and 6404 Ultra320 SCSI controller boards and the P600 SAS controller board. It is a controller cache module, rather than a general-purpose system memory DIMM; the listed compatibility is specific to those controller families.