CPU CPU Model Intel Xeon D-1567 CPU Architecture 64-bit CPU Frequency 12-core 2.1 (base) / 2.7 (turbo) GHz Hardware Encryption Engine (AES-NI) Yes Memory System Memory 16 GB DDR4 ECC RDIMM Memory Module Pre-installed 16 GB (16 GB x 1) Total Memory Slots 4 Memory Expandable up to 128 GB (32 GB x 4) Notes Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. Synology reserves the right to replace memory modules with the same or higher frequency based on suppliers product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. Storage Drive Bays 12 Maximum Drive Bays with Expansion Unit 96 (RX1217sas) / 180 (RX2417sas) Compatible Drive Type 3.5" SAS HDD 2.5" SAS HDD 2.5" SAS SSD 3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD Maximum Internal Raw Capacity 192 TB (16 TB drive x 12) (Capacity may vary by RAID types) Maximum Raw Capacity with Expansion Units 1,536 TB (192 TB + 16 TB drive x 84) (Capacity may vary by RAID types) Maximum Single Volume Size 200 TB (32 GB RAM required, for RAID 5 or RAID 6 groups only) 108 TB Hot Swappable Drive Yes Notes "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. Each internal volume (may consist of multiple drives) is expandble up to 108TB (with memory less than 32GB) or 200TB (with memory equal to or greater than 32GB). External Ports RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support) RJ-45 10GbE LAN Port 2 (with Link Aggregation / Failover support) USB 3.0 Port 2 Expansion Port 1 PCIe PCIe Expansion 2 x Gen3 x8 slots (x8 link) Add-In-Card Support PCIe Network Interface Card File System Internal Drives Btrfs EXT4 External Drives Btrfs EXT4 EXT3 FAT NTFS HFS+ exFAT Notes exFAT Access is purchased separately in Package Center. Appearance Form Factor (RU) 2U Rack Installation Support 4-post 19" rack (Synology Rail Kit - RKS1317) Notes The rail kit is sold separately Others System Fan 80 mm x 80 mm x 4 pcs Fan Speed Mode Full-Speed Mode Cool Mode Quiet Mode Easy Replacement System Fan Yes Power Recovery Yes Noise Level 49.8 dB(A) Scheduled Power On / Off Yes Wake on LAN / WAN Yes Power Supply Unit / Adapter 500 W Redundant Power Supply Yes AC Input Power Voltage 100 V to 240 V AC Power Frequency 50/60 Hz, Single Phase Power Consumption 156.23 W (Access) 72.37 W (HDD Hibernation) British Thermal Unit 533.08 BTU/hr (Access) 246.94 BTU/hr (HDD Hibernation) Notes Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A), Temperature: 24.25-25.75oC, Humidity: 58.2-61.8% Temperature Operating Temperature 0oC to 35oC (32oF to 95oF) Storage Temperature -20oC to 60oC (-5oF to 140oF) Relative Humidity 5% to 95% RH Certification EAC VCCI CCC RCM KC FCC CE BSMI Environment RoHS Compliant Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Quick Installation Guide X 1 Optional Accessories D4RD-2666-16G DDR4 ECC RDIMM D4RD-2666-32G DDR4 ECC RDIMM Expansion Unit: RX1217sas X 7 Expansion Unit: RX2417sas X 7 2.5" SATA SSD: SAT5200 M.2 SSD and 10GbE Combo Adapter Card: E10M20-T1 M.2 SSD Adapter Card: M2D20 10GbE Network Interface Card: E10G18-T2 10GbE Network Interface Card: E10G18-T1 10GbE Network Interface Card: E10G17-F2 Synology Rail Kit Sliding - RKS1317 VS360HD VS960HD Surveillance Device License Pack Notes It is required to use D4RD-2666-16G with identical memory modules of the same capacity and frequency. DSM Specifications Storage Management Maximum Internal Volume Number 256 Maximum iSCSI Target Number 256 Maximum iSCSI LUN 512 iSCSI LUN Clone/Snapshot, Windows ODX Yes SSD Read / Write Cache (White Paper) Yes SSD TRIM Yes RAID Group Yes Supported RAID Type RAID F1 Basic JBOD RAID 0 RAID 1 RAID 5 RAID 6 RAID 10 RAID Migration Basic to RAID 1 Basic to RAID 5 RAID 1 to RAID 5 RAID 5 to RAID 6 Volume Expansion with Larger HDDs RAID F1 RAID 1 RAID 5 RAID 6 RAID 10 Volume Expansion by Adding a HDD RAID F1 JBOD RAID 5 RAID 6 Global Hot Spare Supported RAID Type RAID F1 RAID 1 RAID 5 RAID 6 RAID 10 File Services File Protocol CIFS/AFP/NFS/FTP/WebDAV Maximum Concurrent CIFS/AFP/FTP Connections 4,000 Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) 10,000 Windows Access Control List (ACL) Integration Yes NFS Kerberos Authentication Yes Account and Shared Folder Maximum Local User Accounts 16,000 Maximum Local Groups 512 Maximum Shared Folder 512 Maximum Shared Folder Sync Tasks 32 High Availability Synology High Availability Yes Log Center Syslog Events per Second 3,000 Virtualization VMware vSphere 6 with VAAI Yes Windows Server 2016 Yes Citrix Ready Yes OpenStack Yes