HP 633537-001 1-Port PCI-E SAS RAID Controller

The HP 633537-001 is a P222 FBWC 1-Port PCI-E SAS RAID Controller in a low-profile PCIe card, designed to add a single SAS channel and hardware RAID capability to servers with space-limited expansion slots. It features flash-backed write cache (FBWC) to help improve write performance on SAS storage configurations, and its compact LP form factor makes it suitable for slim servers and workstation chassis where discrete expansion is required. With a single-port SAS interface, this controller provides hardware RAID support for a dedicated drive channel, enabling RAID-protected storage in compact server deployments. The part number 633537-001 identifies this HP component for integration into HP server environments and similar systems that accept PCIe-based SAS RAID controllers.