HP StorageWorks MSA60, HDD, Serial ATA, 3.5", 15.4 kg, Rack (2U) HP StorageWorks MSA60. Installed storage drive type: HDD, Storage drive interface: Serial ATA, Storage drive size: 3.5". Chassis type: Rack (2U). Number of storage drives supported: 12, Supported storage drive types: HDD. Width: 448 mm, Depth: 590 mm, Height: 88 mm, Weight: 15.4 kg