Part
538755-001
is compatible in the following Models:
HPE StoreOnce Systems
HPE StoreOnce 4420 Backup - BB856A
HPE StoreOnce 4430 Backup - BB857A
HPE D2D4312 Backup System - EH983A
HPE D2D4324 BACKUP SYSTEM - EH985A
Intel Xeon W5000 Series Processor Option Kits
Intel Xeon W5580 3.20GHz Quad Core 130 Watts ML/DL - 495928-B21