Synology RackStation RS3618xs is an advanced 12-Bay rackmount NAS designed for streamlining data management & optimizing virtual environments; sliding rail kit included for easy installation. A powerhouse solution for challenging enterprise applications; expands storage capacity with minimal time investment in setup & upkeep. Form Factor: NAS Rack Server Internal File System Format: EXT4, Btrfs Ports: 4 x RJ-45 1GbE LAN Ports (both with Link Aggregation /Failover support); 2 x USB 3.2 Ports; 2 x Expansion Ports; Btrfs File System for Advanced LUN iSCSI Service Processor: Xeon D-1521 4-Core 2.4GH z CPU Memory: 64GB DDR4 ECC UDIMM Storage: 192TB (12 x 16TB) SATA 3.5" HDDs for High-Capacity Storage Power: Single Power Supply Operating System: Synology DSM Software Offers reliable data security & fast performance. Supports multi-user environments while handling data sensitive workloads. Comes in a sealed box. Hard drives & memory upgrades included separately NOT installed, installation required.