Synology RackStation RS4021XS+ NAS/storage server Rack (3U) Ethernet LAN Black D-1541

SKU
RS4021XS+
Synology
Intel Xeon D-1541, 8-core 2.1 (base) / 2.7 (turbo) GHz, 16 GB DDR4 ECC UDIMM, 16 Drive Bays, 3U
Securing your business assets 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 throughput1. 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 the best 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 Customize to your business The RS4021xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment2. Double bandwidth Upgrade network bandwidth in minutes by 2x or more with Synology’s range of 10GbE NICs. SSD cache3 Boost 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 expansion Quickly and easily scale up to 40 drives with two RX1217(RP) expansion units. 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. Deduplication4, integrity checks, and incremental transfer technology reduce bandwidth and storage used. 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. Storage for virtualization Synology 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 solution Synology 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 private AES-256 encryption keeps locally-stored footage secure. Access from anywhere, anytime Access recordings and live streams whenever you want using a web browser, desktop client, or the DS cam mobile app. Real-time alerts Email, SMS, or push notifications alert you when incidents occur or predefined conditions are met.
SKU RS4021XS+
EAN 4711174724086
Manufacturer Synology
In Stock Y
Storage
Storage drives installedNo
Installed storage drive typeNo
Supported storage drive typesHDD & SSD
Number of storage drives supported16
Storage drive interfaceSerial ATA II, Serial ATA III
RAID supportYes
RAID levels5, 6
Storage drive sizes supported2.5,3.5"
Processor
Processor manufacturerIntel
Processor boost frequency2.7 GHz
CPU configuration (max)1
Conflict-Free processorYes
Processor frequency2.1 GHz
Processor familyIntel® Xeon®
Processor modelD-1541
Processor cores8
Number of processors supported1
Memory
Internal memory typeDDR4
Internal memory16 GB
Maximum RAM supported64 GB
Memory slots4
Memory form factorUDIMM
ECCYes
Network
Ethernet LAN data rate supported (max)10000 Mbit/s
Ethernet LANYes
Wake-on-LAN readyYes
Ports & interfaces
USB portYes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity2
PCI Express x8 (Gen 3.x) slots2
Ethernet LAN (RJ-45) ports6
Hard drive
RAID supportYes
RAID levels5, 6
Design
Built-in speaker(s)No
Cooling typeActive
Fan diameter8 cm
Built-in displayNo
Product colourBlack
Number of fans3 fan(s)
Chassis typeRack (3U)
Technical details
TypeStorage server
Device classSmall & Medium Business
Backup functionYes
Built-in displayNo
Product colourBlack
Noise level44.7 dB
Chassis typeRack (3U)
Number of fans3 fan(s)
Harmonized System (HS) code84714100
Performance
TypeStorage server
Device classSmall & Medium Business
Backup functionYes
On/off switchYes
Noise level44.7 dB
Cooling
Cooling typeActive
Fan diameter8 cm
Number of fans3 fan(s)
Management features
On/off switchYes
Power
Power consumption (HDD standby)62.68 W
Power supply unit (PSU) capacity800 W
AC input voltage100 - 240 V
AC input frequency50 - 60 Hz
Redundant power supply (RPS) supportYes
Power consumption (typical)145.79 W
Weight & dimensions
Width482 mm
Depth656.5 mm
Height132.3 mm
Weight17.4 kg
Packaging content
Power cables quantity2
Processor special features
Intel VT-x with Extended Page Tables (EPT)Yes
Intel Virtualization Technology for Directed I/O (VT-d)Yes
Intel Virtualization Technology (VT-x)Yes
Intel TSX-NI version1.00
Intel TSX-NIYes
Intel Trusted Execution TechnologyYes
Intel Secure Key Technology version1.00
Intel Enhanced Halt StateYes
Intel 64Yes
Idle StatesYes
Execute Disable BitYes
Enhanced Intel SpeedStep TechnologyYes
Embedded options availableNo
Operational conditions
Storage temperature (T-T)-20 - 60 °C
Operating temperature (T-T)0 - 35 °C
Operating relative humidity (H-H)5 - 95%
Certificates
CertificationFCC CE BSMI VCCI RCM EAC CCC KC UL
Logistics data
Harmonized System (HS) code84714100
£4,857.08 £4,047.57
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In Stock
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