The QNAP TS-433 is a 4-bay (NAS) desktop Attached Storage Network (NAS) designed to provide a high-performance centralized storage solution for home environments and small offices (SOHO). It comes with 4 preinstalled HDD discs for a total capacity of 4TB. This model is optimized for network speed thanks to its Ethernet 2.5 Gigabit (2.5GbE) port, which greatly increases performance compared to old Gigabit standards, allowing faster backups and a fluid 4K stream. It is equipped with 4 GB of RAM and a Quad-Core processor (typically Realtek), able to effectively manage the QNAP QTS operating system and its numerous applications, including multimedia services and surveillance features. The 4 slots support hard disk drive (HDD) or solid state drive (SSD) from 3.5 inch or 2.5 inch, allowing flexible RAID configurations (0, 1, 5, 6, 10) to ensure data security and redundancy. It also has 3 USB ports for external expansion and backup. ? Main Technical Specifications Model: QNAP TS-433. Type of Device: NAS (Network Attached Storage) Desktop. Accommodation Units: 4 Slots Hot-Swap for HDD/SSD SATA 3.5" or 2.5". Archiving: HDD 4x 1TB (Total 4TB) Processor: Quad-Core (typically Realtek). RAM memory: 4 GB (DDR4, not user expandable on the base model). Network connectivity: 1 x LAN 2.5 Gigabit (2.5GbE / RJ-45). 1 x Gigabit LAN port (1GbE / RJ-45) (depending on the specific variant, the double LAN is confirmed only if it includes another 1GbE port). External ports: 3 USB ports (typically 1 x USB 3.2 Gen 1 and 2 x USB 2.0). RAID support: RAID 0, 1, 5, 6, 10, JBOD, Single. Operating system: QNAP QTS. Additional features: AI Acceleration (QuMagie Core), Snapshot, Hybrid Backup Sync, Surveillance Station.