Quick Specs

660092-001 Capacitor Pack with 610mm (24 inches) long cable – Provides back up power to the Flash-Backed Write Cache (FBWC) memory module for up to 80 seconds in the event of a system power failure – For use with Smart Array Controllers
633543-001 2GB flash backed write cache (FBWC) memory module, 72-bit wide – Part does not include the controller board or capacitor module – For use with the P420, P421, P430, P431, 822, and 830 Smart Array controllers