HPE Smart Array P440-2GB PCI-e FBWC Controller Without Battery - 820834-B21
The HP Smart Array P440/2GB controller offers 12 Gb/s SAS throughput with a 2‑GB battery‑backed cache, supports SATA drives, and provides RAID 0, 1, 5, 6, 10, 50, 60 on a low‑profile PCIe card.