Download media files without having to power up your PC with the built-in BitTorrent client. Y QNAP TS-431P3, NAS, Tower, Annapurna Labs, Alpine AL-314, 4 GB, DDR3 QNAP TS-431P3. Type: NAS. Chassis type: Tower. Device class: Home & Home Office. 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: 40 TB, Installed storage drive type: HDD. Operating system installed: QNAP Turbo System