HPE Smart Array P440/2GB FBWC RAID controller, MPN 830057-001-RFB, is a server storage controller for connecting internal drives and managing them in RAID arrays. The listing identifies this particular item as refurbished.
Its PCI Express 3.0 x8 interface and single internal mini-SAS port connect supported storage drives. It supports SAS and Serial ATA drives, with a stated data transfer rate of 12 Gbit/s.
The controller has 2 GB of internal memory and supports RAID levels 0, 1, 10, 10 ADM, 5, 50, 6 and 60, offering several ways to configure server storage. The listing identifies the memory as FBWC, or flash-backed write cache.