Sub-Category Smart ArrayGeneration P408i-aPart Number 804331-B21Products ID 490887Manufacturer HPProduct Type Storage Controller (RAID)Interface PCI Express 3.0 x8 Lane WidthConnector Type 8 Internal SAS lanesForm Factor Type-a Modular ControllerPorts 8 SAS lanes across 2 x 4 Mini SAS PortsCache 2GB Flash-Backed Write CacheRAID Level 0 1 5 6 10 50 60 1 ADM 10 ADMTransfer Rate SAS 12Gb/s per laneTransfer Rate SATA 6Gb/s per lane