571436002: HP Flash Backed Write Cache (FBWC) capacitor pack (24IN CBL).
The HP 571436002 is a Flash-Backed Write Cache capacitor pack with a 24-inch cable, designed for HPE Smart Array controllers in ProLiant Gen8 and Gen9 servers. It provides backup power to the FBWC module during unexpected power loss, ensuring cached write data is safely committed to flash memory. Unlike traditional batteries, the supercapacitor design offers a longer operational lifespan with no scheduled replacement cycles and no temperature-related degradation.
This is the short-cable variant (24") designed for 1U chassis configurations. The long-cable variant for 2U+ chassis is 660093-001 (36"). This is a high-volume replacement part in TPM market as ProLiant Gen8 and Gen9 servers remain widely deployed.
This part is cataloged in the U.S. Government catalog under NSN 5910-01-601-8416, indicating validated use in U.S. government and defense logistics supply chains.
| Endurance | Read Intensive |
| Interface | SATA 6Gb/s |
| NAND Type | MLC |
| Form Factor | 2.5-inch SFF |
| NSN | 5910-01-601-8416 |
| SPECIAL FEATURES | HEWLETT PACKARD 571436-002 FLASH BACKED WRITE TECH DATA |
| END ITEM IDENTIFICATION | SERVER,DL380 |