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.

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.

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.

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.

Drive Package
Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.

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.

Virtual Machine Manager
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.

Snapshots for virtual machines
Clone and restore complete virtual machines within seconds.

Live migration
Seamlessly migrate virtual machines from one Synology NAS to another.

Multi-tenant environment
Create multiple isolated virtual machines for business units or departments.

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.