Download media files without having to power up your PC with the built-in BitTorrent client. Y QNAP TS-977XU-RP, NAS, Rack (1U), AMD Ryzen, 4 GB, DDR4, 48 TB QNAP TS-977XU-RP. Type: NAS. Chassis type: Rack (1U). Device class: Small & Medium Business. Processor family: AMD Ryzen, Processor frequency: 3.1 GHz. Internal memory: 4 GB, Internal memory type: DDR4. Total installed storage capacity: 48 TB, Installed storage drive type: HDD. Operating system installed: QNAP Turbo System