Description:
This is a genuine OEM HP 512MB P-series Smart Array Flash Backed Write Cache Kit. It includes the 36 inch cable and the 660093-001 FBWC Capacitor Pack.
Includes 671353-001 cable
Includes 633540-001 512MB FBWC module

• Part Number(s)
  •   ::  Manufacturer Part #: 661069-B21
  •   ::  Spare Part #: 633540-001
  •   ::  Spare Part #: 610672-001

Overview:

•   ::  The Flash Backed Write Cache (FBWC) uses NAND 6 flash devices to retain cache data and super-capacitors (super-caps) instead of batteries to provide power during a power loss.
•   ::  The FBWC offers significant advantages over the HP Battery-Backed Write-Cache (BBWC) system.
•   ::  Since the FBWC writes the contents of memory to flash devices, there is no longer a 48-hour battery life limitation and the data will be posted to the disk drive on the next power up.