QNAP TS-1231XU-RP, NAS, Rack (2U), Annapurna Labs, Alpine AL-314, 4 GB, DDR3 QNAP TS-1231XU-RP. Type: NAS. Chassis type: Rack (2U). Device class: Small & Medium Business. Processor family: Annapurna Labs, Processor model: Alpine AL-314, Processor frequency: 1.7 GHz. Internal memory: 4 GB, Internal memory type: DDR3. Total installed storage capacity: 72 TB, Installed storage drive type: HDD. Operating system installed: QNAP Turbo System