Synology Largest Subdistributor and Service partner in UAE
DataCare LLC is the largest Synology subdistributor since 2008 and we are also the service partner since 2020. We have expertise in designing and commissioning Synology solutions. We integrate drives from Synology, WD, Seagate and Toshiba into Synology solutions. Every Synology device you buy from us with hard drives will be pre-configured by us for free. We also offer extended warranty for new Synology devices, extended warranty for existing Synology devices, and next-business-day replacement of Synology for an additional charge.
We also repair and sell Synology spare parts, as we are a Synology service partner. Our technicians are trained by Synology and we also organise workshops and technical trainings for Synology.
Stock availability of Synology Synology RackStation RS4021xs+
We have a large inventory (probably one of the largest in the Middle East) of Synology as we are a sub-distributor. If the stock is not available, we can give you a firm delivery date.
Price Matching and Lowest Bulk Price for Synology Synology RackStation RS4021xs+
The price listed on the website is the retail price intended for end users, but If you are an end user looking for a better price you can either email us or use the "Match My Price" service. Resellers can request for a special reseller price.
Free Shipping for Synology Synology RackStation RS4021xs+ in UAE
We Ship Synology Synology RackStation RS4021xs+ to Dubai, Abu Dhabi and Rest of the UAE free of cost. We have Export freight rates for this product also to Middle East including Saudi Arabia, Kuwait, Qatar, Bahrain and Oman. For African countries, our organized carriers tend to be expensive and we ask that you arrange shipping yourself. VAT Exceptions for export orders from the UAE are available if shipped from Jebel Ali or if your carrier issues proper export documentation
Plus Series 16 bay NAS for Offices and IT Pros
Diskless 0 TB
Supports RAID SHR, 0,1,5,6,10
Enterprise NAS with built-in service continuity engineered for data-intensive applications.
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.
Intel® Xeon® D-1541 8-core 2.1 GHz
Built-in dual-port 10GbE
16 GB ECC DDR4 Up to 64 GB
Up to 40 drive bays with RX1217(RP)
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.
Dual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans allow them to 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 suit
The RS4021xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment2.
Upgrade network bandwidth in minutes by 2x or more with Synologys range of 10GbE NICs.
Boost read/write IOPS by up to 16 times by enabling SSD cache via our Synology M.2 NVMe adapter cards and SNV3000 Series SSDs or by installing one or more 2.5 SAT5200 SSDs.
Quickly and easily scale up to 40 drives with two RX1217(RP) expansion units.
License-free data protection
Keep disaster at bay
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.
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.
Backup your entire IT infrastructure
Active Backup Suite
Enables 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 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.
Complete 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 adds additional security to the locally-stored footage.
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.
The RS4021xs+ runs Synology DiskStation Manager (DSM), the unified operating system equipped with applications and services designed specifically for businesses.
Public Cloud Integration
Back up and synchronize data easily between public cloud accounts and your NAS.
Virtual Machine Manager
Run various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.
Secure data with comprehensive built-in security tools to protect your devices against evolving threats.
Satisfy all team collaboration needs behind the safety of your own private cloud with Synology Office, Calendar, and Chat.
At Synology, we are committed to product innovation and quality. The RS4021xs+ is backed by a 5-year limited warranty that includes technical support and hardware replacement services to maximize your return on investment.
1 Power button and indicator
2 Alert Off Button
3 Drive tray
4 Drive status indicator
5 PSU fan
6 Power Port
7 PSU Indicators & Alert Off Buttons
8 Console port
9 1GbE/10GbE RJ-45 Ports
10 USB 3.2 Ports
11 Expansion port
12 PCIe expansion slot
13 Reset button
Intel Xeon D-1541
8-core 2.1 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine (AES-NI)
16 GB DDR4 ECC UDIMM
Memory Module Pre-installed
16 GB (16 GB x 1)
Total Memory Slots
Maximum Memory Capacity
64 GB (16 GB x 4)
Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
For more information on the recommended memory configurations, visit here.
Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Maximum Drive Bays with Expansion Unit
40 (RX1217/RX1217RP x 2)
Compatible Drive Type* (See all supported drives)
3.5" SATA HDD
2.5" SATA SSD
Maximum Single Volume Size*
200 TB (32 GB RAM required, for RAID 5 or RAID 6 groups only)
Hot Swappable Drive
Storage Pool and volume creation require all drives to be listed as compatible on the device model's compatibility list.
"Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
Each internal volume (may consist of multiple drives) is expandable up to 108 TB (with memory less than 32 GB) or 200 TB (with memory equal to or greater than 32 GB).
RJ-45 1GbE LAN Port
4 (with Link Aggregation / Failover support)
RJ-45 10GbE LAN Port
2 (with Link Aggregation / Failover support)
USB 3.2 Gen 1 Port*
The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
2 x Gen3 x8 slots (x8 link)
exFAT Access is purchased separately in Package Center.
Power consumption is measured when it is fully loaded with Synology 8TB HAT5300-8T hard drive(s).
Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75?C; Humidity: 58.2-61.8%
0°C to 35°C (32°F to 95°F)
-20°C to 60°C (-5°F to 140°F)
5% to 95% RH
The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)