The HP Smart Array P212 is HP s entry level PCI Express (PCIe) Serial Attached SCSI (SAS) RAID controller. The low profile half height card has 8 ports and utilizes DDR2-800 memory. The P212 is ideal for RAID 0 1 1+0 and can be upgraded with this 256 MB Cache module for RAID 5 5+0 and additionally with Battery Kit and Smart Array Advanced Pack (SAAP) license key for RAID 6 (ADG) & 6+0. Category: Proliant Controller. Sub-Category: Cache Module. Generation: 256MB. Device Type: DRAM. Technology: SDRAM.