Description
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Scalable NAS with SSD cache acceleration capability
Synology DS920+ is an ideal network-attached storage solution to streamline data management and productivity. Two built-in M.2 SSD slots and Synology SSD Cache technology allow you to boost system I/O and application performance. Scalable storage design lets you start small and expand storage capacity with Synology DX517 as your data grows.
Optimize performance and capacity
DS920+ provides two built-in M.2 SSD slots so that you can take full advantage of Synology SSD Cache functionality. Add SSD cache for up to 20 times faster I/O response without using front drive bays. You can add five more drives with Synology DX517 to expand storage capacity.
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Hardware Specifications |
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CPU |
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CPU |
CPU Model | Intel Celeron J4125 |
| CPU Architecture | 64-bit | |
| CPU Frequency | 4-core 2.0 (base) / 2.7 (burst) GHz | |
| Hardware Encryption Engine (AES-NI) | ||
Memory |
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Memory |
System Memory | 4 GB DDR4 non-ECC |
| Total Memory Slots | 1 | |
| Maximum Memory Capacity | 8 GB (4 GB + 4 GB) | |
| Notes |
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Storage |
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Storage |
Drive Bays | 4 |
| Maximum Drive Bays with Expansion Unit | 9 (DX517 x 1) | |
| M.2 Drive Slots | 2 (NVMe) | |
| Compatible Drive Type* (See all supported drives) |
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| Maximum Single Volume Size* | 108 TB | |
| Hot Swappable Drive | ||
| Notes |
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External Ports |
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External Ports |
RJ-45 1GbE LAN Port | 2 (with Link Aggregation / Failover support) |
| USB 3.0 Port | 2 | |
| eSATA Port | 1 | |
File System |
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File System |
Internal Drives |
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| External Drives |
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| Notes | exFAT Access is purchased separately in Package Center. | |
Appearance |
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Appearance |
Size (Height x Width x Depth) | 166 mm x 199 mm x 223 mm |
| Weight | 2.24 kg | |
Others |
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Others |
System Fan | 92 mm x 92 mm x 2 pcs |
| Fan Speed Mode |
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| Brightness Adjustable Front LED Indicators | ||
| Power Recovery | ||
| Noise Level* | 19.8 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | 100 W | |
| AC Input Power Voltage | 100 V to 240 V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* | 32.17 W (Access) 9.69 W (HDD Hibernation) |
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| British Thermal Unit | 109.84 BTU/hr (Access) 33.09 BTU/hr (HDD Hibernation) |
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| Notes |
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Temperature |
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Temperature |
Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) | |
| Relative Humidity | 5% to 95% RH | |
Certification |
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Certification |
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Warranty |
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Warranty |
3-year hardware warranty, extendable to 5-year coverage – EW201 | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
Environment |
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Environment |
RoHS Compliant | |
Packaging Content |
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Packaging Content |
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Optional Accessories |
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Optional Accessories |
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DSM Specifications |
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Storage Management |
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Storage Management |
Maximum Internal Volume Number | 64 |
| Maximum iSCSI Target Number | 128 | |
| Maximum iSCSI LUN | 256 | |
| iSCSI LUN Clone/Snapshot, Windows ODX | ||
| SSD Read / Write Cache (White Paper) | ||
| SSD TRIM | ||
| Supported RAID Type |
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| RAID Migration |
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| Volume Expansion with Larger HDDs |
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| Volume Expansion by Adding a HDD |
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| Global Hot Spare Supported RAID Type |
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File Services |
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File Services |
File Protocol | CIFS/AFP/NFS/FTP/WebDAV |
| Maximum Concurrent CIFS/AFP/FTP Connections | 1,000 | |
| Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) | 2,000 | |
| Windows Access Control List (ACL) Integration | ||
| NFS Kerberos Authentication | ||
| Notes | Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM. | |
Account & Shared Folder |
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Account & Shared Folder |
Maximum Local User Accounts | 2,048 |
| Maximum Local Groups | 256 | |
| Maximum Shared Folder | 512 | |
| Maximum Shared Folder Sync Tasks | 16 | |
High Availability |
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High Availability |
Synology High Availability | |
Log Center |
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Log Center |
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| Syslog Events per Second | 800 | |
Virtualization |
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Virtualization |
VMware vSphere 6 with VAAI | |
| Windows Server 2016 | ||
| Windows Server 2019 | ||
| Citrix Ready | ||
| OpenStack | ||
General Specifications |
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General Specifications |
Networking Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
| Supported Browsers |
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| Supported Language | English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 | |
Add-on Packages view the complete package list |
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Antivirus by McAfee (Trial) |
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Antivirus by McAfee (Trial) |
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Central Management System |
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Central Management System |
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Synology Chat |
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Synology Chat |
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| Maximum Users | 1,500 | |
| Notes |
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Document Viewer |
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Document Viewer |
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Download Station |
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Download Station |
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| Maximum Concurrent Download Tasks | 80 | |
exFAT Access (Optional) |
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exFAT Access (Optional) |
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Synology MailPlus / MailPlus Server |
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Synology MailPlus / MailPlus Server |
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| Free Email Accounts | 5 (Licenses required for additional accounts) | |
| Maximum Number of Concurrent Users | 100 | |
| Maximum Server Performance | 1,224,000 emails per day, approx. 37GB | |
| Notes |
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Media Server |
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Media Server |
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| DLNA Compliance | ||
Moments |
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Moments |
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| Facial Recognition | ||
| Subject Recognition | ||
| Auto Color & Rotate | ||
| Moments Select | ||
Snapshot Replication |
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Snapshot Replication |
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| Maximum Snapshots per Shared Folder | 1,024 | |
| Maximum of System Snapshots | 65,536 | |
Surveillance Station |
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Surveillance Station |
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| Maximum IP cam (Licenses required) | 40 (including 2 Free License) (See All Supported IP Cameras) | |
| Total FPS (H.264) | 1200 FPS @ 720p (1280×720) 1050 FPS @ 1080p (1920×1080) 600 FPS @ 3M (2048×1536) 360 FPS @ 5M (2591×1944) 200 FPS @ 4K (3840×2160) |
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| Total FPS (H.265) | 1200 FPS @ 720p (1280×720) 1200 FPS @ 1080p (1920×1080) 1000 FPS @ 3M (2048×1536) 600 FPS @ 5M (2591×1944) 300 FPS @ 4K (3840×2160) |
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| Total FPS (MJPEG) | 680 FPS @ 720p (1280×720) 400 FPS @ 1080p (1920×1080) 300 FPS @ 3M (2048×1536) 200 FPS @ 5M (2591×1944) |
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| Notes |
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Synology Drive |
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Synology Drive |
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| Recommended Number of Hosted Files | 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) | |
| Recommended Number of Concurrent Sync Clients | 600 (the number of connections that can be maintained when the recommended number of hosted files was reached) | |
| Notes |
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Synology Office |
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Synology Office |
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| Maximum Users | 3,400 | |
| Notes |
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Video Station |
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Video Station |
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Virtual Machine Manager |
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Virtual Machine Manager |
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| Recommended Virtual Machine Instances | 4 (Learn more) | |
| Recommended Virtual DSM Number (Licenses required) | 4 (including 1 Free License) | |
| Notes | The specifications vary depending on system configuration and memory size. | |
VPN Server |
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VPN Server |
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| Maximum Connections | 30 | |
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