The Synology DS1520+ is a powerful 5-bay desktop NAS that brings you a fast and smooth data management experience. Featuring four 1GbE LAN ports with network failover support, the DS1520+ provides 451.28 MB/s sequential read and 451.18 MB/s sequential write throughput with Link Aggregation enabled. The DS1520+ also benefits computing-intensive applications, speeding up Synology Drive and Moments by an average 16%, and boosting Web PHP response efficiency by about 126% as compared to its predecessor, making data management simple and efficient.

The DS1520+ comes with two built-in M.2 SSD slots with Synology SSD Cache technology. Random IO responsiveness can be boosted 20 times faster than spinning drives, with no need to occupy front drive bays. You can add up to 15 drives with two Synology DX517 expansion units for a higher storage capacity.

The DS1520+ comes with Synology Collaboration Suite, the productivity and file sharing solution that powers team collaboration while leveraging the advantages of the private cloud to fully control data and prevent data leaks — through HTTPS support, a built-in firewall, and multiple IP and account intrusion auto-blocking mechanisms.

• Synology Drive enables data synchronization and backup via a web portal and desktop applications across Windows, macOS, and Linux platforms. Intelliversioning saves historical versions while minimizing storage space use and supports on-demand data restoration.
• Synology Office includes Documents, Spreadsheets, and Slides. Its online editing environment allows multiple users to edit, comment, and share company data simultaneously — at no additional license fee.
• Synology MailPlus is a reliable mail server, accessible through an intuitive web-based client, that helps users to manage emails and increase productivity. MailPlus supports deployment in High-Availability clusters.
• Synology Chat enables instant conversations and optimizes team communications with powerful features including message encryption, pinning, forwarding, reminders, and scheduling.

The DS1520+ offers users a range of backup solutions for cloud and physical, on-premises environments. Backing up and restoring data is effortless and completely free of licenses on compatible NAS models:

• Back up your cloud data: Cloud Sync enables users to seamlessly back up or synchronize data between a local Synology NAS and other cloud services.
• Back up your PCs and servers: Synology Drive Client backs up your Windows, macOS, and Linux desktop devices to safeguard important computer files.
• Back up your Synology NAS: Hyper Backup offers a wide range of destinations for backups of your NAS, including on-premises and cloud.

Synology Virtual Machine Manager (VMM) is an intuitive hypervisor application that lets users easily set up virtual machines and run operating systems including Windows, Linux, and Virtual DSM. With VMM, users can build up a cluster environment with multiple Synology systems while keeping the flexibility to scale out online and migrate virtual machines for load balancing and resource allocation. Disaster recovery features including instant snapshot, replication, cloning, restore, and failover help you fully protect each virtual machine and safeguard your digital assets at no additional cost.

VMM Pro licenses give access to advanced features including remote replication, remote storage migration, high availability, and live migration, helping users further minimize the risk of service downtime and manage IT resources with maximum flexibility.

With Synology Surveillance Station, the DS1520+ can act as a full-featured video surveillance system. Simply add network-connected cameras and you can monitor their live feeds, playback recordings, and receive instant event alerts right away.

• Works with more than 7300 IP cameras: Pick any compatible model that suits your requirements and budget, or use the LiveCam app to turn an old smartphone into an IP camera.
• No subscription fee: Unlike security cameras that require a monthly cloud storage subscription, all your recordings are stored on the DS1520+, 100% under your control.
• Remote monitoring and control: Access your surveillance system from a web browser, the desktop client, or the DS cam mobile app anytime, anywhere.
• Automation & notification: Set up rules to trigger specific actions when predefined events occur, such as automatically taking snapshots when motion is detected. Get notified by email, SMS, or push notification so that you can intervene in time.

The Synology DS1621+ can be a multipurpose powerhouse, suitable for a wide range of usage environments. The compact, desktop form factor makes it easy to store away at home or in a quiet office environment.

• Up to 110,000 4K random read IOPS and 2300 MB/s sequential write speeds for demanding workloads.
• Dual M.2 2280 slots for NVMe SSD lets you maximize performance and capacity efficiently.
• Features 6 bays supporting both SATA HDD/SSD 2.5″ and 3.5″ drives, but can be expanded by using two Synology DX517 expansion units for a total capacity of 16 bays
• Powered by Synology DSM, their unified data management operating system.

The DS1621+ uses the Btrfs file system optimized by Synology to offer both high reliability and high performance. Btrfs supports advanced storage technologies that meet the needs of modern business.

• Advanced snapshot technology provides schedulable and near-instantaneous data protection of shared folders and LUNs.
• File and folder level data restoration offers users who wish to restore only a specific file or folder more flexibility.
• Flexible Shared Folders and user quota system provides comprehensive quota control on all user accounts and shared folders.
• File self-healing allows Btrfs file systems to auto-detect corrupted files using mirrored metadata and to recover broken data using RAID configurations.
• Inline compression compresses data before writing it to the drive, to optimize storage use and reduce write commands to the drives.

Synology Collaboration Suite allows businesses to host their own fundamental IT services for file sharing, concurrent document editing, emails, instant messaging, and more. Create a multi-user collaborative environment while leveraging private cloud infrastructure to reduce privacy concerns. Multilayered security enables secure access to files and services, even for a distributed or remote workforce across Windows, macOS, Linux, Android, and iOS platforms.

• Synology Drive enables data access, synchronization, and backup via a web portal and desktop applications across Windows, macOS, and Linux platforms. Intelliversioning saves historical versions while minimizing storage space usage and supports on-demand data restoration.
• Synology Office includes Documents, Spreadsheets, and Slides. The online collaborative editing environment allows multiple users to edit, comment, and share data together.
• Synology MailPlus enables you to set up a secure, reliable, and private email server, with an intuitive web-based client to boost productivity.
• Synology Chat enables instant conversations and optimizes team communications with powerful features including message encryption, pinning, forwarding, reminders, and scheduling.
• Synology Calendar helps teams keep track of what’s important, with easy to use sharing and scheduling functionality, keeping everyone on the same page.

Synology Virtual Machine Manager (VMM) is a hosted hypervisor that lets users easily set up virtual machines running Windows or Linux based platforms and a virtualized version of Synology DSM, Virtual DSM, on the DS1621+. Using VMM, users can build up a cluster environment with multiple Synology systems for flexibility to perform online migration based on load balancing and resource allocation requirements. High-performance snapshots, replication, cloning, and recovery mechanisms enable comprehensive management and data protection on each VM.

DSM also simplifies the provisioning and management of storage for virtual machines. Certified for VMware vSphere, Microsoft Hyper-V, Citrix XenServer, and OpenStack, Synology systems can integrate with your virtualization platform of choice through iSCSI or NFS protocols. Install Synology Storage Console for VMware/Windows for additional management convenience and functionality right in the hypervisor.

The DS1621+ includes a range of backup solutions to protect local, remote, and cloud-based deployment environments, all-inclusive with the device. Easily set up automated backups and even enable self-serve functionality for reduced maintenance and upkeep.

• Back up data on Synology NAS: Snapshot Replication enables fast snapshots for point-in-time file versioning, which is great for rolling back unintended file modifications and protecting your data against ransomware attacks. Hyper Backup offers a wide range of destinations for backups of your NAS, including for both local and remote on-premises and cloud storage providers.
• Back up business infrastructure: Synology Active Backup suite is a collection of power backup solutions built to protect Windows systems and servers, VMware and Hyper-V VMs, other file servers, and even Google G Suite and Microsoft 365 SaaS clouds.

With Synology Surveillance Station, the DS1621+ becomes a powerful VMS solution. With support for up to 40 IP cameras, you can cover large installations.

• 7600 supported cameras and counting: Find a compatible camera from updated compatibility lists to match your video requirements and budget. ONVIF support prevents vendor lock-in.
• Private and subscription-free: Unlike cloud-based cameras, you can keep your recordings private and on-premises. Simple per-camera licensing with no subscriptions needed to access your data.
• Flexible monitoring & control: Access your surveillance system from a web browser, dedicated desktop clients, or from the DS cam mobile app. Internet-optional.
• Automation & notification: Set up rules to trigger specific actions when an event occurs, such as automatically taking a picture when motion detection is triggered. Get notified by email, SMS, or push notification so that you can act quickly.