HP 660093-001 Flash Backed Write Cache FBWC Battery for P420 and P421 654873-003 660093-001 HP FBWC Capacitor Pack 36inch Cable 654873-003 HP 660093-001 P420 P421 P222 P822 FBWC Battery 36inch 654873-003 HP Capacitor Battery For P222 P420 P420i P421 P430 P431 P822 P830 660093-001 HP 2GB FBWC Cache P222 P420 P421 P430 P431 P822 P830 633543-001 Battery HP SERIES 2GB P-SERIES SMART ARRAY FBWC memory 633543-001 660093-001 battery HP Flashed Back Write Cache Capacitor Battery 660093-001 654873-003 Detailed Specifications Brand: HP Model: 660093-001 Part Number(s): 660093-001, 654873-003 Compatible Models: P420, P421, P222, P822 Cable Length: 90cm