Description
The 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.
-
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.
Specifications
Summary
- Product Description
- Synology RackStation RS4021xs+ - NAS server
- Device Type
- NAS server
- Host Connectivity
- Gigabit Ethernet / 10 Gigabit Ethernet
- Enclosure Type
- Rack-mountable - 3U
- Installed Devices / Modules Qty
- 0 (installed) / 16 (max)
- Dimensions (WxDxH)
- 48.2 cm x 65.65 cm x 13.23 cm
- Weight
- 17.4 kg ()
- Processor
- 1 x Intel Xeon D-1541 2.1 GHz (8-core)
- Storage Controller
- RAID SATA 6Gb/s RAID RAID 0, 1, 5, 6, 10, JBOD, 5 hot spare, 6 hot spare, 10 hot spare, 1 hot spare, RAID F1, F1 hot spare
- Networking
- 1GbE, 10GbE
- RAM
- 16 GB
- Power
- AC 120/230 V (50/60 Hz)
- Power Redundancy
- Yes
- Manufacturer Warranty
- 5-year warranty
Detailed Specification
General
- Device Type
- NAS server
- Host Connectivity
- Gigabit Ethernet / 10 Gigabit Ethernet
- Enclosure Type
- Rack-mountable - 3U
- Total Storage Capacity
- 0 GB
- Installed Devices / Modules Qty
- 0 (installed) / 16 (max)
- Width
- 48.2 cm
- Depth
- 65.65 cm
- Height
- 13.23 cm
- Weight
- 17.4 kg ()
Processor / Memory
- Processors Installed
- 1 x Intel Xeon D-1541 2.1 GHz
- Number of Cores
- 8-core
- Max Supported Qty
- 1
- Max Turbo Speed
- 2.7 GHz
- RAM
- 16 GB (installed) / 64 GB (supported) - DDR4
Storage Controller
- Type
- RAID
- Interface Type
- SATA 6Gb/s
- RAID Level
- RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD, RAID 5 hot spare, RAID 6 hot spare, RAID 10 hot spare, RAID 1 hot spare, RAID F1, RAID F1 hot spare
Networking
- Data Link Protocol
- 1GbE, 10GbE
- Network / Transport Protocol
- PPTP, L2TP, iSCSI, SMTP, FTP, DHCP, POP3, IMAP
- Remote Management Protocol
- SNMP, Telnet, HTTPS
- Network Services Compatibility
- Microsoft Active Directory (AD), Network File System (NFS), Server Message Block (SMB), Apple File Protocol (AFP), Web-based Distributed Authoring and Versioning (WebDAV), Calendaring Extensions to WebDAV (CalDAV)
- Features
- Firewall protection, VPN support, LDAP support, VLAN support, wake on LAN (WOL), print server, antivirus analysis, High Availability, web server, backup server, file sharing, event log, Access Control List (ACL) support, iTunes server, DHCP server, FTP server, BitTorrent Client, e-mail server, bandwidth control, surveillance station, eMule client, e-mail notification
- Encryption Algorithm
- 256-bit AES
- Compliant Standards
- DLNA CERTIFIED
Expansion / Connectivity
- Expansion Bays
- 16 (total) / 16 (free) x hot-swap - 2.5" / 3.5"
- Expansion Slots
- 2 (total) / 2 (free) x PCI Express 3.0 x8 , 4 (total) / 3 (free) x DIMM 288-pin
- Interfaces
- 4 x Ethernet 1000Base-T - RJ-45 , 2 x USB 3.2 Gen 1 - Type A , 2 x Ethernet 10Gb - RJ-45 , 2 x expansion port , 1 x management
Miscellaneous
- Compliant Standards
- UL, VCCI, BSMI, CCC, FCC, RoHS, KC, EAC, RCM
- Included Accessories
- Accessory pack
Power
- Power Device
- Internal power supply
- Installed Qty
- 2
- Max Supported Qty
- 2
- Power Redundancy
- Yes
- Power Redundancy Scheme
- 1+1
- Voltage Required
- AC 120/230 V (50/60 Hz)
- Power Consumption Operational
- 145.79 Watt
- Power Provided
- 800 Watt
Manufacturer Warranty
- Service & Support
- Limited warranty - 5 years
Environmental Parameters
- Min Operating Temperature
- 0 °C
- Max Operating Temperature
- 35 °C
- Humidity Range Operating
- 5 - 95%
- Sound Emission
- 50.2 dBA
Bundle deals
Hard Drives
 |
Synology 8TB HAS5300 3.5" SAS Hard Drive | In Stock | £239.58 |
 |
Synology 12TB HAS5300 3.5" SAS Hard Drive | In Stock | £372.67 |
 |
Synology 16TB HAS5300 3.5" SAS Hard Drive | In Stock | £533.55 |
