Accelerate Your Business OptionsThe 12-bay RS3621xs+ is capable of delivering random 4K reads of over 238K IOPS and a sequential read throughput of 5819 MB/s, making it a true enterprise powerhouse. With full power supply redundancy, an 8-core processor, ECC memory, advanced snapshot technology, and file self-healing, the RS3621xs+ provides a reliable foundation to any data-driven business.

You Can TrustThe RS3621xs+ keeps your data protected while you concentrate on delivering results to your customers, even when disaster strikes.Redundant PowerDual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans allow them to be replaced without powering down the system.Maximize Service AvailabilitySynology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover.Next-Generation File SystemBtrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots.Tailored to Your BusinessThe RS3621xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment.Double BandwidthUpgrade network bandwidth in minutes by 2x or more with Synology's range of 10GbE NICs.SSD CacheBoost read/write IOPS by up to 16 times by enabling SSD cache with Synology M.2 NVMe adapter cards and SNV3500 SSDs or by installing one or more 2.5" SAT5200 SSDs.

ExpansionQuickly and easily scale up to 36 drives with two RX1217(RP) expansion units.Keep Disaster at BayHyper BackupA comprehensive backup and recovery solution for securing data stored on Synology servers. Backup data locally, to another Synology device, rsync server, or cloud-based storage such as Google Drive, Dropbox, S3-compatible destinations, and Synology C2. Deduplication, integrity checks, and incremental transfer technology reduce bandwidth and storage used.Snapshot ReplicationEasily schedule flexible point-in-time backups of shared folders and iSCSI LUNs with an RPO as low as 5 minutes and recovery in seconds. Set up replication and failover to other Synology storage systems for fast RTOs and minimal service disruption.Back Up Your Entire IT InfrastructureActive Backup SuiteEnables administrators to easily backup the entire IT infrastructure to their NAS, including Windows & Linux workstations and servers, file servers, VMware and Hyper-V virtual machines, and Microsoft 365 and Google Workspace accounts. Backups benefit from deduplication, multi-versioning, and optimizations to reduce bandwidth and storage used.

for VirtualizationSynology iSCSI storage supports mainstream virtualization solutions with an easy management interface to enhance usability. VMware vSphere 6.5 and VAAI integration helps offload storage operations. Windows Offloaded Data Transfer (ODX) speeds up data transfer. OpenStack Cinder support turns your Synology NAS into a block-based storage component. Additionally, Synology

Console enables even more simplified storage provisioning and management options in VMware and Windows environmentsComplete Surveillance SolutionSynology Surveillance Station transforms the RS3621xs+ into a feature-packed

Video Recorder solution. Support for up to 90 IP cameras and video analytics such as motion detection, no idle zone, foreign object detection, and anomaly detection cater to the most common surveillance scenarios.Secure and PrivateAES 256-bit encryption adds additional security to the locally-stored footage.Access from Anywhere, AnytimeAccess recordings and live streams whenever you want using a web browser, desktop client, or the DS cam mobile app.Real-Time AlertsEmail, SMS, or push notifications alert you when incidents occur or predefined conditions are met.Works with Synology DrivesEngineered to handle intensive 24/7 workloads, Synology drives, including the 3.5" HAT5300 HDD, M.2 SNV3000 SSD, and 2.5" SAT5200 SSD consistently deliver top-grade performance.Powered by Synology DiskStation ManagerThe RS3621xs+ runs Synology DiskStation Manager (DSM), the web-based operating system with applications and services designed specifically for businesses.Central Management SystemConveniently manage your fleet of Synology NAS from a centralized console.Synology DriveInstantly access your NAS files across multiple devices whenever you want, wherever you are.Collaboration SuiteSatisfy all team collaboration needs behind the safety of your own private cloud with Synology Office, Calendar, and Chat.Virtual Machine ManagerRun various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.SecuritySecure data with comprehensive built-in security tools to protect your devices against evolving threats.Public Cloud IntegrationBack up and synchronize data easily between public cloud accounts and your NAS.Limited 5-Year

Synology is committed to product innovation and quality. The RS3621xs+ is backed by a limited 5-year warranty that includes technical support and hardware replacement services to maximize your return on investment.Synology Replacement Service (SRS)SRS provides free advance replacement units as early as the next business day in selected regions, maximizing the service uptime for your mission-critical storage and ensuring your business continuityOptimized for Data Protection and IntegrityPowered by Synology DSM, Synology's unified data management operating system, and built upon the Btrfs file system, data stored on the RS3621xs+ is safely guarded by modern data protection technologies.Advanced Snapshots TechnologyProvides schedulable and near-instantaneous data protection of shared folders and LUNs.File and Folder-Level Data RestorationEnables restoration of specific files or folders.Flexible

Quota SystemHelps admins effortlessly manage available space by specifying storage limits for shared folder.File Self-HealingDetects and recovers corrupted files using mirrored metadata and RAID configurations.Inline CompressionCompresses data before writing it to the drive, reducing write commands and optimizing storage space.Virtualization and Certified

DSM streamlines the provisioning and management of storage for virtual machines (VM). Certified for VMware vSphere, Microsoft Hyper-V, Citrix XenServer, and OpenStack, it integrates with your virtualization platform of choice through iSCSI or NFS protocols. Install Synology

Console on VMware or Windows platforms for additional management convenience and functionality right in the hypervisor.Synology Virtual Machine ManagerA hosted supervisor for virtual machines running Windows, Linux, or virtualized versions of DSM with recovery mechanisms that help ensure data protection on each VM.Data Backup Solutions for IT InfrastructureSynology Active Backup SuiteA collection of license-free backup solutions built to help protect Windows systems and servers, VMs, other file servers, and cloud-based storage.Active Backup for Businesses (ABB)Consolidates backup tasks for physical and virtual environments and enables rapid restoration of files, entire physical machines, and VMs.Active Backup for G SuiteEnables backup of Google Workspace data, including Gmail, Contacts, Calendar, and Drive.Active Backup for Microsoft 365Enables backup of Microsoft 365 data, including OneDrive for Business, SharePoint Online, emails, contacts, and calendar.On-Premises CollaborationSynology's collaboration suite is a private SaaS for file sharing, concurrent document editing, emails, instant messaging, and more. By leveraging a private cloud infrastructure, it ensures data ownership while multilayered security enables secure multi-platform access.Synology DriveAllows data access, synchronization, on-demand file restoration, and backup.Synology MailPlusProvides a secure, reliable, and private email server.Synology ChatBrings teams together through instant multi-platform communication.Synology CalendarHelps teams keep track of what is most important with convenient calendar sharing and scheduling.