QNAP UX-800P, 24 TB, HDD, Serial ATA III, Tower, Black QNAP UX-800P. Total installed storage capacity: 24 TB, Installed storage drive type: HDD, Storage drive interface: Serial ATA III. Chassis type: Tower, Device class: Small & Medium Business. Number of storage drives supported: 8, Supported storage drive types: HDD, Supported storage drive interfaces: Serial ATA II, Serial ATA III. Width: 11.7" (298.2 mm), Depth: 9.27" (235.4 mm), Height: 7.29" (185.2 mm). Product color: Black