Designed for scalability and performanceThe 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.A powerhouse on all frontsThe 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.Turbocharge and supersize itUpgrade your DS1821 to match your data requirements, whether it is for faster networking or for higher storage capacity.2 x M.2 NVMeEnable ultra-fast NVMe cache to accelerate HDD arrays by 20X or more10GbE supportAdd in faster SFP or RJ-45 networking to turbocharge existing workflowsStorage ExpansionSupports two DX517 expansion units for a total of 18 baysUltimate file management and sharingFile 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, DS1821 supports the following protocols AFP, FTP, iSCSI, NFS, SMB, and WebDAV.Fully certified storage virtualization solutionsSynology 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.Ultimate Backup SolutionDS1821 integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.Active Backup for BusinessCentralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.Hyper BackupComprehensively 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 PackageSafeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.Active Backup for Microsoft 365 / Google WorkspaceProtect 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.Powered by Synology DiskStation ManagerCentral Management SystemConveniently manage your fleet of Synology NAS from a centralized console.Synology MailPlusSecure, reliable, and private mail server solution with an intuitive and modern mail client.Synology High AvailabilitySeamless transition between clustered servers in the event of a server failure to minimize the impact on applications.SecuritySecure data with comprehensive built-in security tools to protect your devices against evolving threats.Synology DriveInstantly access your NAS files across multiple devices whenever you want, wherever you are.Surveillance StationComplete surveillance solution for recording, monitoring, and management.Works best with Synology drivesEngineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.