Securing your business assetsThe 16-bay RS421xs+ provides solid data security and lightening-fast performance with over 234K 4K random read IOPS and 6,258 MB/s sequential read throughput1. Together with its 8-core processor, ECC memory, advanced snapshot technology, and built-in 1GbE connectivity, the RS421xs+ can support large multi-user environments while handling data-intensive workloads.
Engineered for service continuityThe RS421xs+ 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 RS421xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment2.
Double bandwidthUpgrade network bandwidth in minutes by 2x or more with Synology’s range of 1GbE NICs.
SSD cache3Boost read/write IOPS by up to 16 times by enabling SSD cache with our Synology M.2 NVMe adapter cards and SNV35 SSDs, or by installing one or more 2.5” SAT52 SSDs.
Storage expansionQuickly and easily scale up to 4 drives with two RX1217(RP) expansion units.
Hyper 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. Deduplication4, 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.
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 RS421xs+ into a feature-packed Network Video Recorder solution. Support for up to 9 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.
- Intel® Xeon® D-1541 8-core 2.1 GHz
- Built-in dual-port 1GbE
- 16 GB ECC DDR4 Up to 64 GB
- Up to 4 drive bays with RX1217(RP)
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