Description:HP Smart Array P441/4GB FBWC 12GB 2-Port External LP SAS Controller Part Number(s) Option Part# 726826-B21 Spare Part# 749798-001Note:Please confirm Low Profile or Full Height Bracket In comments box at checkout. Thank you Overview: The HP Smart Array P440 Controller is a low profile - PCIe 3 x8 - 12Gb/s Serial Attached SCSI (SAS) RAID controller that provides enterprise class storage performance - data protection - and increased internal scalability with SAS Expander Card for select HP Proliant Gen9 rack servers and tower servers. It features eight internal physical links and delivers increased server uptime by providing advanced storage functionality - including online RAID level migration (between any RAID levels) with flash back write cache (FBWC) - global online spare - and pre-failure warning. The Gen9 family of controllers supports the HP Storage Battery. Specifications: CategoryProliant Controller Sub-CategorySmart Array GenerationP441/4GB Part Number726826-B21 Products ID740014 ManufacturerHP Product TypeStorage Controller (RAID) Host BusPCI Express 3.0 x8 Controller Interface TypeSATA 6Gb/s SAS 12Gb/s Data Transfer Rate1.2GB/s Buffer Size4GB RAID Level0 1 1 ADM 10 10 ADM 5 50 6 60 Supported DevicesDisk Array (RAID), Hard Drive Channel Quantity8 Form FactorLow-Profile Plug-in Card Max Storage Devices Qty200 Connector Type36 Pin 4x Mini SAS HD (SFF-8643) Enlarge Image of Part# 726826-B21