Download media files without having to power up your PC with the built-in BitTorrent client. Y QNAP TS-1635AX, NAS, Tower, 4 GB, DDR4, 96 TB, HDD QNAP TS-1635AX. Type: NAS. Chassis type: Tower. Device class: Small & Medium Business. Processor frequency: 1.6 GHz. Internal memory: 4 GB, Internal memory type: DDR4. Total installed storage capacity: 96 TB, Installed storage drive type: HDD. Operating system installed: QNAP Turbo System