Synology RackStation RS4021xs+ 3U 16-Bay NAS Server, 8-Core 2.1GHz,16GB,3.5" HDD

Enterprise NAS with built-in service continuity engineered for data-intensive applications.Securing your business assetsThe 16-bay RS4021xs+ provides solid data security and lightening-fast performance with over 234K 4K random read IOPS and 6,258 MB/s sequential read throughput. Together with its 8-core processor, ECC memory, advanced snapshot technology, and built-in 10GbE connectivity, the RS4021xs+ can support large multi-user environments while handling data-intensive workloads.ComputeIntel Xeon D-1541 8-core 2.1 GHzNetworkingBuilt-in dual-port 10GbEMemory16 GB ECC DDR4 Up to 64 GBScalabilityUp to 40 drive bays with RX1217(RP)Engineered for service continuityThe RS4021xs+ ensures mission-critical data is always available, enabling businesses to deliver the best results, even in the face of disaster.Redundant powerDual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans can 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.Customize to your businessThe RS4021xs+ 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 our Synology M.2 NVMe adapter cards and SNV3500 SSDs, or by installing one or more 2.5" SAT5200 SSDs.Storage expansionQuickly and easily scale up to 40 drives with two RX1217(RP) expansion units.The ultimate backup solutions - license-freeKeep 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.Backup 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, multiversioning, and optimizations to reduce bandwidth and storage used.Storage 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 Storage Console enables even more simplified storage provisioning and management options in VMware and Windows environments.All-in-one surveillance solutionSynology Surveillance Station transforms the RS4021xs+ into a feature-packed Network Video Recorder solution. Support for up to 90 IP cameras5 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 encryption keeps locally-stored footage secure.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 best with Synology drivesEngineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.• SATA 3.5" HDD HAT5300• NVMe M.2 SSD SNV3000• SATA 2.5" SSD SAT5200Powered by Synology DiskStation ManagerThe RS4021xs+ runs Synology DiskStation Manager (DSM), the web-based operating system equipped with powerful applications and services for business.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.