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High capacity storage and data protection for anyone
The 8-bay Synology DS1821+ is aimed at IT enthusiast and SMB customers looking for a powerful and scalable storage solution, its business-grade backup solutions keep users safe and protected from potential data loss, while major improvements to compute capabilities and throughput means workloads are finished faster than ever before.
CPU
AMD Ryzen Quad-core 2.2 GHz
Cache Acceleration
Dual M.2 2280 slots for NVMe Cache
Performance
113K 4K random read IOPS
Scalability
Expand up to 18 drives with two DX517 expansion units
The DS1821+ can handle demanding application workloads and a greater number of concurrent users. Experience faster file indexing in Synology Drive, photo organization in Moments, and more responsive web services.1
networking or for higher storage capacity.
Enable ultra-fast NVMe cache to accelerate HDD arrays by 20X or more
Add in faster SFP+ or RJ-45 networking to turbocharge existing workflows
Supports two DX517 expansion units for a total of 18 bays
HDD/SSDs, 10GbE network adapter cards, and expansion units are sold separately.
File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operations without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and file sharing. For complete compatibility, DS1621+ supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.
Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.
DS1821+ integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.
DS1821+ is designed to reliably store your data and is backed by Synology's three-year hardware warranty.
Central Management System
Manage multiple Synology NAS servers simultaneously on a centralized interface to increase business efficiency.
Synology MailPlus
Secure, reliable, and private mail server solution with an intuitive and modern mail client.
Synology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.
Security
Comprehensive built-in security tools are constantly updated to protect your devices against evolving threats.
Synology Drive
A versatile solution for file management and synchronization.
Surveillance Station
Complete surveillance solution for recording, monitoring, and management.
Engineered to handle intensive 24/7 workloads, Synology SSDs are designed to provide consistent high-performance.
2.5 SSD SAT5200
M.2 SSD SNV3400
CPU |
CPU Model | AMD Ryzen V1500B |
|---|---|---|
| CPU Architecture | 64-bit | |
| CPU Frequency | 4-core 2.2 GHz | |
| Hardware Encryption Engine (AES-NI) | ||
Memory |
System Memory | 4 GB DDR4 ECC SODIMM |
| Memory Module Pre-installed | 4 GB (4 GB x 1) | |
| Total Memory Slots | 2 | |
| Maximum Memory Capacity | 32 GB (16 GB x 2) | |
| Notes |
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Storage |
Drive Bays | 8 |
| Maximum Drive Bays with Expansion Unit | 18 (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 | 4 | |
| eSATA Port | 2 | |
PCIe |
PCIe Expansion | 1 x Gen3 x8 slot (x4 link) |
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 343 mm x 243 mm |
| Weight | 6 kg | |
Others |
System Fan | 120 mm x 120 mm x 2 pcs |
| Fan Speed Mode |
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| Easy Replacement System Fan | ||
| Brightness Adjustable Front LED Indicators | ||
| Power Recovery | ||
| Noise Level* | 22.2 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | 250 W | |
| AC Input Power Voltage | 100 V to 240 V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* | 59.8 W (Access) 26.18 W (HDD Hibernation) |
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| British Thermal Unit | 204.05 BTU/hr (Access) 89.33 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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| Notes | All memory modules will operate at the maximum frequency specified by the CPU manufacturer. | |
