. Are you looking to protect your data expand the storage inside the server or secure the data? The HPE Smart Array P440 Controller is a low-profile PCIe 3 x 8 12 Gb/s Serial Attached SCSI (SAS) RAID controller that provides enterprise-class storage performance increased internal scalability with SAS Expander card & data protection for HPE Pro Liant Gen 9 rack & tower servers. It features eight internal physical links & 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 & pre-failure warning. The Gen 9 controllers support the HPE Smart Storage Battery that allows multiple Smart Array controllers to be supported resulting in simple upgrade process..