HPE StoreEasy 1660. Supported storage drive types: HDD & SSD, Storage drive interface: Serial ATA, Serial ATA II, Serial ATA III, Serial Attached SCSI (SAS). Internal memory: 16 GB, Internal memory type: DDR4. Chassis type: Rack (2U), Cooling type: Active, Product colour: Black. Type: NAS, Device class: Large Enterprise Business. Width: 87.3 mm, Depth: 445.4 mm, Height: 730.2 mm