2 x Mini SAS Ext, PCIe, 6Gb/s, 1GB DDR3-1333, RAID 0/1/1+0/5/50
HPE SmartArray P421/1GB, SAS, Serial ATA, PCI Express x8, 0, 1, 1+0, 5, 50, 6 Gbit/s, 1024 MB, DDR3
HPE SmartArray P421/1GB. Supported storage drive interfaces: SAS, Serial ATA, Host interface: PCI Express x8. RAID levels: 0, 1, 1+0, 5, 50, Data transfer rate: 6 Gbit/s, Internal memory: 1024 MB. Width: 145.3 mm, Depth: 190.5 mm, Height: 241.3 mm. PCI Card form factor: Half-height (low-profile)