Synology DiskStation DS1520+ is an ideal network-attached storage solution suitable for small office and IT enthusiasts. Two built-in M.2 SSD slots and Synology SSD Cache technology allow you to boost system I/O and application performance. The scalable storage design of DS1520+ 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 19.8% boost to computing-intensive applications1
Expand up to 15 drives with a DX517 expansion unit
DS1520+ 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 10 more drives with two 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 with scheduled backups or in real-time.
Synology Office is a collaboration package combining the convenience and usability of the public cloud with private cloud privacy and security. It enables seamless collaboration on documents and spreadsheets in a protected environment. Learn more
Sandbox new software , manage resources using a single interface, and increase deployment flexibility with Synology Virtual Machine Manager. Run Windows, Linux, and Virtual DSM instances on your Synology NAS in just a few steps. Learn more
Clone and restore complete virtual machines within seconds.
Seamlessly migrate virtual machines from one Synology NAS to another.
Create multiple isolated virtual machines for business units or departments.
DS1520+ is designed to reliably store your data and is backed by Synology's three-year hardware warranty. An optional two-year extended warranty is available in select regions for up to five years of coverage. Learn more
Store multiple backup versions with block-level incremental data backup and cross-version deduplication.
Learn moreSchedulable and instantaneous data protection of shared folders and iSCSI LUNs for quick disaster recovery.
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
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 | 8 GB DDR4 non-ECC |
| Memory Module Pre-installed | 8 GB (4 GB + 4 GB) | |
| Total Memory Slots | 1 | |
| Notes |
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Storage |
Drive Bays | 5 |
| Maximum Drive Bays with Expansion Unit | 15 (DX517 x 2) | |
| 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 | 4 (with Link Aggregation / Failover support) |
| USB 3.0 Port | 2 | |
| eSATA Port | 2 | |
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 230 mm x 223 mm |
| Weight | 2.62 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* | 20.8 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | 120 W | |
| AC Input Power Voltage | 100 V to 240 V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* | 36.67 W (Access) 15.51 W (HDD Hibernation) |
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| British Thermal Unit | 125.21 BTU/hr (Access) 52.96 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-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 |
RoHS Compliant | |
Packaging Content |
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Optional Accessories |
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