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DS920+ Synology 4-Bay Desktop NAS [Intel Celeron 2.3GHz Quad Core, D4 4GB, 4 x 2.5"/3.5" SATA, Built-in 2xM.2 2280 NVMe SSD Slots, Up to 9-Bay w/ DX517, 2xGbE]
Streamline your data management
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.
4-core 2.0 GHz, burst up to 2.7 GHz
2 x built-in M.2 2280 NVMe SSD slots
Average 15% boost to computing-intensive applications1
Expand up to 9 drives with a DX517 expansion unit
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.
A more powerful CPU speeds up computing-intensive applications. The new 4-core processor boosts photo indexing, database response times, and web PHP response efficiency. Easily categorize your photo memories, smoothly manage files across computers and mobile devices, and enjoy blazing fast web applications.
Synology Drive provides a built-in universal portal to access your data anytime and anywhere, and synchronize all your files across platforms, including Windows, macOS, Linux, Android, and iOS. Learn more
Sync files on demand: Save the storage space and network bandwidth of your PC.
Go back in time: Easily retrieve previous versions of your shared files.
Back up your data: Protect your files as scheduled or in real-time.
Synology Office is a collaboration package combining the convenience and usability of public clouds with the data privacy and security guaranteed by private clouds. It allows you to work seamlessly together on documents and spreadsheets in a protected environment. Learn more
Virtual Machine Manager enables you to test new software in sandboxes, isolate your customers' machines, and increase the flexibility of your server. You can easily run Windows, Linux, and Virtual DSM on your Synology NAS by just a few steps. Learn more
Perfectly clone and restore a virtual machine within seconds.
Seamlessly migrate Virtual DSM instances from a Synology NAS to another.
Create multiple isolated virtual machines for subsidiary business units or departments.
Store multiple backup versions with block-level incremental data backup and cross-version deduplication.
Learn moreSchedulable and instantaneous data protection for shared folders and iSCSI LUNs for disaster prevention.
Learn moreComplete surveillance solution for recording, monitoring, and management.
Learn moreRun various operating systems in isolated sandboxes. Seamlessly clone, restore and migrate virtual machines.
Learn more
Notes:
CPU |
CPU Model | Intel Celeron J4125 |
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| CPU Architecture | 64-bit | |
| CPU Frequency | 4-core 2.0 (base) / 2.7 (burst) GHz | |
| Hardware Encryption Engine (AES-NI) | ||
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 |
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 |
RJ-45 1GbE LAN Port | 2 (with Link Aggregation / Failover support) |
| USB 3.0 Port | 2 | |
| eSATA Port | 1 | |
File System |
Internal Drives |
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| External Drives |
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| Notes | exFAT Access is purchased separately in Package Center. | |
Appearance |
Size (Height x Width x Depth) | 166 mm x 199 mm x 223 mm |
| Weight | 2.24 kg | |
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 |
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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Warranty |
3 Years | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
Environment |
RoHS Compliant | |
Packaging Content |
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Optional Accessories |
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| Notes | All memory modules will operate at the maximum frequency specified by the CPU manufacturer. | |
Notes:
DSM Specifications |
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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 |
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 |
Maximum Local User Accounts | 2,048 |
| Maximum Local Groups | 256 | |
| Maximum Shared Folder | 512 | |
| Maximum Shared Folder Sync Tasks | 16 | |
High Availability |
Synology High Availability | |
Log Center |
Syslog Events per Second | 800 |
Virtualization |
VMware vSphere 6 with VAAI | |
| Windows Server 2016 | ||
| Windows Server 2019 | ||
| Citrix Ready | ||
| OpenStack | ||
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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Central Management System |
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Synology Chat |
Maximum Users | 1,500 |
| Notes |
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Document Viewer |
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Download Station |
Maximum Concurrent Download Tasks | 80 |
exFAT Access (Optional) |
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Synology MailPlus / MailPlus Server |
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 |
DLNA Compliance | |
Moments |
Facial Recognition | |
| Subject Recognition | ||
| Auto Color & Rotate | ||
| Moments Select | ||
Snapshot Replication |
Maximum Snapshots per Shared Folder | 1,024 |
| Maximum of System Snapshots | 65,536 | |
Surveillance Station |
Maximum IP cam (Licenses required) | 40 (including 2 Free License) (See All Supported IP Cameras) |
| Total FPS (H.264) | 1200 FPS @ 720p (1280x720) 1050 FPS @ 1080p (1920x1080) 600 FPS @ 3M (2048x1536) 360 FPS @ 5M (2591x1944) 200 FPS @ 4K (3840x2160) |
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| Total FPS (H.265) | 1200 FPS @ 720p (1280x720) 1200 FPS @ 1080p (1920x1080) 1000 FPS @ 3M (2048x1536) 600 FPS @ 5M (2591x1944) 300 FPS @ 4K (3840x2160) |
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| Total FPS (MJPEG) | 680 FPS @ 720p (1280x720) 400 FPS @ 1080p (1920x1080) 300 FPS @ 3M (2048x1536) 200 FPS @ 5M (2591x1944) |
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| Notes |
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Synology Drive |
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 | 350 (the number of connections that can be maintained when the recommended number of hosted files was reached) | |
| Notes |
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Synology Office |
Maximum Users | 1,200 |
| Notes |
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Video Station |
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Virtual Machine Manager |
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 |
Maximum Connections | 30 |
Notes:
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