HP Gen 8 | 652757-B21 | 2TB 7.2K RPM SAS 6Gb/s 128MB Cache 512n | 3.5-inch LFF | 2 Million MTBF | SC Midline Hard Disk Drive (HDD) UNRIVALED COMPATIBILITY - Compatible with: 653948-001 | 507613-002 | 638521-001 | 649327-002 | 625030-002 | 649327-002 | 507613-002 | MB2000FAMYV | MB2000FBUCL | MB2000FBZPN | MB2000FCQPF | ST2000NM0001 | ST32000444SS