Hewlett Packard Enterprise MSA 1050. Storage drive size: 3.5". Chassis type: Rack (2U). Device class: Small & Medium Business. Number of storage drives supported: 12, Supported storage drive types: HDD, Supported storage drive interfaces: SAS. Width: 22.5" (572 mm), Depth: 17.6" (447 mm), Height: 3.5" (89 mm), Weight: 38.8 lbs (17.6 kg)