Synology RS4021XS+ 16 Bay Rackmount NAS

Enterprise NAS with built-in service continuity engineered for data-intensive applications.

Key Product Info

• Securing your business assets
• Engineered for service continuity
• Redundant power
• Maximize service availability
• Next-generation file system
• Customized to your business
• Hyper Backup
• Snapshot replication
• Active backup suite

Product Features

• Securing your business assets
  The 16-bay RS4021xs+ provides solid data security and lightning-fast performance. 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.
• Engineered for service continuity
  The RS4021xs+ ensures mission-critical data is always available, enabling businesses to deliver great results, even in the face of disaster.
• Redundant power
  Dual 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 availability
  Synology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover.
• Next-generation file system
  Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots.
• Customized to your business
  The RS4021xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment.
• Hyper Backup
  A 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 use.
• Snapshot replication
  Easily 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.
• Active backup suite
  Enables administrators to easily backup the entire IT infrastructure to their NAS, including Windows and 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.