Synology RackStation RS3618xs – 12-Bay 2U NAS, Intel Xeon D-1521, 8GB DDR4 ECC (Up to 64GB), 4x 1GbE, PCIe for 10GbE, Btrfs, Scalable to 36 Drives Model: Synology RackStation RS3618xs Form Factor: 2U Rackmount CPU: Intel Xeon D-1521, Quad-Core 2.4 GHz (Turbo up to 2.7 GHz) Hardware Encryption Engine: Yes (AES-NI) Memory: 8 GB DDR4 ECC UDIMM (expandable up to 64 GB) Memory Slots: 4 x DDR4 ECC UDIMM Drive Bays: 12 x 3.5"/2.5" SATA HDD/SSD Hot Swappable Drives: Yes Maximum Drive Bays with Expansion: 36 (with 2 x RX1217/RX1217RP) LAN Ports: 4 x RJ-45 1GbE (Link Aggregation / Failover support) PCIe Expansion: 1 x PCIe 3.0 x8 slot (for optional 10GbE/40GbE NICs) USB Ports: 2 x USB 3.0 Expansion Ports: 2 x eSATA (for RX1217/RX1217RP) File System: Btrfs RAID Support: Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 Maximum Internal Raw Capacity: 192 TB (16 TB drive x 12) Maximum Capacity with Expansion: 576 TB (with 2 x RX1217/RX1217RP) Sequential Read Performance: Over 3,900 MB/s iSCSI Random Read IOPS: Over 143,500 Cooling: 3 x 80 mm fans with Full-Speed, Cool, and Quiet modes Power Consumption: 88.96 W (access), 39.84 W (HDD hibernation) Dimensions: 88 mm x 482 mm x 724 mm Weight: 13.0 kg Operating Temperature: 5°C to 35°C Operating System: Synology DiskStation Manager (DSM) Same-day to 2-day delivery 1-Year Global Cloud warranty