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Hardware Specifications CPU CPU Model Intel Xeon D-1521 CPU Architecture 64-bit CPU Frequency Quad Core 2.4 (base) / 2.7 (turbo) GHz Hardware Encryption Engine (AES-NI) Memory System Memory 8 GB DDR4 ECC UDIMM Memory Module Pre-installed 8GB (1 x 8GB) Total Memory Slots 4 Memory Expandable up to 64 GB (16 GB x 4) Storage Drive Bays 12 Maximum Drive Bays with Expansion Unit 36 Compatible Drive Type* - 3.5" SATA HDD
- 2.5" SATA HDD
- 2.5" SATA SSD
Maximum Internal Raw Capacity 144 TB (12 TB drive x 12) (Capacity may vary by RAID types) Maximum Raw Capacity with Expansion Units 432 TB (144 TB + 12 TB drive x 24) (Capacity may vary by RAID types) Maximum Single Volume Size - 200 TB (32GB RAM required, for RAID 5 or RAID 6 groups only)
- 108 TB
Hot Swappable Drive External Ports RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support) USB 3.0 Port 2 Expansion Port 2 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 Size (Height x Width x Depth) 88 mm x 430.5 mm x 692 mm Weight 14.5 kg 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 Power Recovery Noise Level* 50.2 dB(A) Scheduled Power On/Off Wake on LAN/WAN Power Supply Unit / Adapter 500W AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption* 142.76 W (Access)
55.05 W (HDD Hibernation)British Thermal Unit 487.12 BTU/hr (Access)
187.84 BTU/hr (HDD Hibernation)Environment Temperature Operating Temperature 5°C to 35°C (40°F to 95°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Relative Humidity 5% to 95% RH Certification - EAC
- VCCI
- CCC
- RCM
- FCC Class A
- CE Class A
- BSMI Class A
Warranty 5 Years Notes - Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
- Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DSM Specifications Storage Management Maximum Internal Volume Number 1024 Maximum iSCSI Target Number 64 Maximum iSCSI LUN 512 iSCSI LUN Clone/Snapshot, Windows ODX SSD Read/Write Cache SSD TRIM RAID Group 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
Volume Expansion by Adding a HDD - RAID F1
- RAID 5
- RAID 6
- JBOD
Global Hot Spare Supported RAID Type - RAID F1
- RAID 1
- RAID 5
- RAID 6
- RAID 10
File Sharing Capacity Maximum Local User Accounts 16000 Maximum Local Groups 512 Maximum Shared Folder 512 Maximum Shared Folder Sync Tasks 16 Maximum Concurrent CIFS/AFP/FTP Connections 2000 Windows Access Control List (ACL) Integration NFS Kerberos Authentication High Availability Manager Log Center Syslog Events per Second 3000 Virtualization VMware vSphere 6 with VAAI Windows Server 2012 Windows Server 2012 R2 Citrix Ready OpenStack Add-on Packages Antivirus by McAfee (Trial) Central Management System Chat Maximum Users 4000 Notes - The number of concurrent HTTP connections for Chat was configured to the maximum.
- CPU and RAM usage were both under 80% when the number of maximum users was reached.
- For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server Maximum Number of Concurrently Connected Devices 2000 Maximum Number of Concurrently Connected Devices (with RAM expansion) 10000 Maximum Number of Synced Files (btrfs) 3,000,000 / single file reaction time 530 ms Maximum Number of Synced Files (ext4) 3,000,000 / single file reaction time 229 ms Notes - The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time. For more information on file processing capability, please refer to the reaction time for file processing.
- File reaction time refers to the preparation time required for other devices to start downloading a 10KByte file from a Synology NAS after the file has been added to the NAS. RAM expansion was not used during testing.
- Non-encrypted shared folders were used during the aforementioned testing.
Document Viewer Download Station Maximum Concurrent Download Tasks 80 Drive Maximum Number of Synced Files 3,000,000 / single file reaction time 244 ms Maximum Number of Concurrent Connections for PC Clients 1800 Notes - The Btrfs file system was used for the purpose of testing.
- The maximum number of concurrent connections refers to the maximum number of connections that could be maintained when the maximum number of synced files was reached.
- File reaction time refers to the preparation time required for other devices to start downloading a 10KByte file from a Synology NAS after the file has been added to the NAS.
- For tested models with expandable memory, the maximum amount of RAM was installed.
- Non-encrypted shared folders were used during the aforementioned testing.
exFAT Access (optional) MailPlus / MailPlus Server Free Email Accounts 5 Recommended MailPlus Client Number Up to 400 (Btrfs) / 450 (EXT4) Maximum Server Performance 2,621,000 (Btrfs) / 2,412,000 (EXT4) emails per day, approx. 80 GB (Btrfs) / 73.6 GB (EXT4) Notes - The CPU and RAM usages were both under 80% when testing recommended client numbers.
- For tested models with expandable memory, the maximum amount of RAM was installed.
- Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
- The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
- Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
Media Server DLNA Compliance Moments Facial recognition Subject recognition Office Maximum Users 2800 Notes - Multiple files were opened for testing and each file was edited by 30 users simultaneously.
- CPU and RAM usage were both under 80% when the number of maximum users was reached.
- For tested models with expandable memory, the maximum amount of RAM was installed.
- Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
PetaSpace Snapshot Replication Maximum Snapshots per Shared Folder 1024 Maximum Snapshots of all Shared Folder 65536 Surveillance Station Maximum IP cam (Licenses required) 75 (including 2 Free License) Total FPS (H.264)* 2250 FPS @ 720p (1280x720)
2100 FPS @ 1080p (1920×1080)
1500 FPS @ 3M (2048x1536)
900 FPS @ 5M (2591x1944)
550 FPS @ 4K (3840x2160)Total FPS (H.265)* 2250 FPS @ 720p (1280x720)
2250 FPS @ 1080p (1920×1080)
2250 FPS @ 3M (2048x1536)
1500 FPS @ 5M (2591x1944)
900 FPS @ 4K (3840x2160)Total FPS (MJPEG)* 720 FPS @ 720p (1280x720)
375 FPS @ 1080p (1920×1080)
250 FPS @ 3M (2048x1536)
180 FPS @ 5M (2591x1944)Notes Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera. Video Station Video Transcoding Group 1 - Type 1 Maximum Transcoding Channel Number 1 channel, 30 FPS @ 1080p(1920×1080), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1 Virtual Machine Manager Maximum Virtual DSM Number (Licenses required) 8 (including 1 Free License) Notes Virtual Machine Manager is not supported on hosts running Synology High Availability. VPN Server Maximum Connections 30 Environment & Packaging Environment RoHS Compliant Packaging Content - Main Unit X 1
- Accessory Pack X 1
- AC Power Cord X 1
- Quick Installation Guide X 1
Optional Accessories - Surveillance Device License Pack
- 8GB DDR4 ECC UDIMM
- 16GB DDR4 ECC UDIMM
- Expansion Unit: RX1217/RX1217RP X 2
- VS360HD
- VS960HD
- Synology RKS1317 - Rail Kit Sliding
- Synology Ethernet Adapter E10G15-F1
- Synology Ethernet Adapter E10G17-F2
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