Synology DiskStation DS223 is made for a variety of server roles, such as home data backup, file syncing, and sharing. A high-capacity powerhouse capable of fitting into most any environment, making it easy to centralize all your multimedia collections with rigorous workloads. RTD1619B Quad-Core 1.7GHz CPU; 2GB DDR4 non-ECC; 36TB (2 x 18TB) SATA 3.5' HDDs for High-Capacity Storage; 1 x RJ-45 1GbE LAN Port (with Link Aggregation / Failover support); 3 x USB 3.2 Ports Features: Security Advisor, Surveillance Station, Backup, Centralized Data Management, Ultra-Fast Data Transfer Speed, File Syncing and Sharing, Strong Application Support such as Multimedia Streaming, and Synology DSM Software Operating System Synology NAS chassis comes in a sealed box. Hard drives and memory upgrades included separately, not installed, installation required.