Comes with:
731126-001 - Battery pack - 4.3V NiMH with 914mm (36 inches) long cable - Provides back up power to the Flash-Based Write Cache (FBWC) memory module in the event of a system power failure - For use with Smart Array controllers

729637-001 - Smart Array P830 controller board - PCIe3 x8 full height SAS controller - Has two internal x8 wide mini-SAS ports - For up to 6 Gb/s transfer rate for SAS and SATA

729639-001 - 4GB flash backed write cache (FBWC) memory module, 72-bit wide. For use with the P420, P421, P430, P431, 822, and 830 Smart Array controllers