Synology DiskStation DS1621xs+
High-end scalable NAS in desktop form factor
DS1621xs+ is a high-end NAS with server-class performance in a 6-bay desktop form factor. The built-in M.2 SSD cache slots, 10GbE port, expandable memory, and scalable storage design allow you to boost the performance of your NAS, making it ideal for small and medium-sized businesses that need an efficient and space-saving storage solution.
CPU
Intel® Xeon D-1527 4-core 2.2 GHz
Memory
8 GB DDR4 ECC SODIMM, up to 32 GB
High Performance
Over 3,100 MB/s sequential read
Scalability
Up to 16 drives with DX5171
Supercharge your storage with speedy performance
DS1621xs+ comes with built-in M.2 SSD cache slots capable of providing I/O response speeds 20 times faster than hard drives without occupying front drive bays. The built-in 10GbE port provides fast data transmission and can be bonded with an additional network interface card for higher network bandwidth.
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M.2 SSD support
Dual M.2 2280 SSD supporting NVMe SSDs -
10GbE support
Built-in 10GBASE-T for bandwidth intensive environments
5-year warranty
At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty, providing responsive technical support and hardware replacement services to maximize your return on investment.
Ultimate Backup Solution
DS1621xs+ integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.
Active Backup for Business
Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.
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Hyper Backup
Comprehensively back up your data to a local shared folder, an external device, another Synology NAS, an rsync server, or a public cloud to ensure data safety.
Learn more
Synology Drive
Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
Learn more
Active Backup for
Microsoft 365 / G Suite
Protect corporate data stored on the cloud. On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
Microsoft 365G Suite
Real-time collaboration on your private cloud
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
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
Snapshots for virtual machines
Perfectly clone and restore a virtual machine within seconds.
Live migration
Seamlessly migrate Virtual DSM instances from a Synology NAS to another.
Multi-tenant environment
Create multiple isolated virtual machines for subsidiary business units or departments.
Powered by Synology DSM
Central Management System
Manage multiple Synology NAS servers simultaneously on a centralized interface to increase business efficiency.
Learn moreSynology MailPlus
Secure, reliable, and private mail server solution with an intuitive and modern mail client.
Learn moreSynology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.
Learn moreSecurity
Comprehensive built-in security tools are constantly updated to protect your devices against evolving threats.
Learn moreSurveillance Station
Complete surveillance solution for recording, monitoring, and management.
Learn more- 1Status indicator
- 2Alert indicator
- 3Power button and indicator
- 4LAN indicator
- 5Drive status indicator
- 6Drive tray
- 7Drive tray lock
- 8USB 3.0 port
- 9System fan
- 10Power port
- 11Kensington Security Slot
- 1210GbE RJ-45 port
- 131GbE RJ-45 port
- 14Reset button
- 15Expansion port
- 16PCIe expansion slot
CPU |
CPU Model | Intel Xeon D-1527 |
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CPU Architecture | 64-bit | |
CPU Frequency | 4-core 2.2 (base) / 2.7 (turbo) GHz | |
Hardware Encryption Engine (AES-NI) | ||
Memory |
System Memory | 8 GB DDR4 ECC SODIMM |
Memory Module Pre-installed | 8 GB (8 GB x 1) | |
Total Memory Slots | 2 | |
Maximum Memory Capacity | 32 GB (16 GB x 2) | |
Notes |
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Storage |
Drive Bays | 6 |
Maximum Drive Bays with Expansion Unit | 16 (DX517 x 2) | |
M.2 Drive Slots | 2 (NVMe) | |
Compatible Drive Type* (See all supported drives) |
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Maximum Single Volume Size* |
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Hot Swappable Drive | ||
Notes |
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External Ports |
RJ-45 1GbE LAN Port | 2 (with Link Aggregation / Failover support) |
RJ-45 10GbE LAN Port | 1 | |
USB 3.0 Port | 3 | |
eSATA Port | 2 | |
PCIe |
PCIe Expansion | 1 x Gen3 x8 slot (x8 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 282 mm x 243 mm |
Weight | 5.3 kg | |
Others |
System Fan | 92 mm x 92 mm x 2 pcs |
Fan Speed Mode |
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Easy Replacement System Fan | ||
Brightness Adjustable Front LED Indicators | ||
Power Recovery | ||
Noise Level* | 25.2 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* | 62.85 W (Access) 34.26 W (HDD Hibernation) |
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British Thermal Unit | 214.45 BTU/hr (Access) 116.89 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 |
5 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. |