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Synology DiskStation DS1821+


AED 4,305.00 (Inc. VAT)
No tax

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  Warranty and Return Policy

A fully Transparent description of warranties and our return policy.

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  Free Preconfig/Remote Support

Every NAS you buy with hard drive is preconfigured and comes with 1 year remote support.
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    4.2+ Merchant Rating
    Serving UAE Since 2003
    • Plus Series 8-bay NAS for Offices and IT Pros
    • Diskless 0 TB
    • Supports RAID SHR, 0,1,5,6,10

    Synology DiskStation DS1821+

    High capacity storage and data protection for anyone

    Designed for scalability and performance

    The 8-bay Synology DS1821+ is aimed at IT enthusiast and SMB customers looking for a powerful and scalable storage solution, its business-grade backup solutions keep users safe and protected from potential data loss, while major improvements to compute capabilities and throughput means workloads are finished faster than ever before.


    AMD Ryzen™ Quad-core 2.2 GHz

    Cache Acceleration

    Dual M.2 2280 slots for NVMe Cache


    113K 4K random read IOPS


    Expand up to 18 drives with two DX517 expansion units

    A powerhouse on all fronts

    The DS1821+ can handle demanding application workloads and a greater number of concurrent users. Experience faster file indexing in Synology Drive, photo organization in Moments, and more responsive web services.1

    Synology Drive


    Web Server

    Transfer Performance

    Turbocharge and supersize it

    networking or for higher storage capacity.




    2 x M.2 NVMe

    Enable ultra-fast NVMe cache to accelerate HDD arrays by 20X or more




    10GbE support

    Add in faster SFP+ or RJ-45 networking to turbocharge existing workflows




    Storage Expansion

    Supports two DX517 expansion units for a total of 18 bays

    HDD/SSDs, 10GbE network adapter cards, and expansion units are sold separately.



    Ultimate file management and sharing

    File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operations without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and file sharing. For complete compatibility, DS1621+ supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.

    Fully certified storage virtualization solutions

    Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.

    Ultimate Backup Solution

    DS1821+ integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.

    • Active Backup for Business : Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.
    • Hyper Backup : Comprehensively back up your data to a local shared folder, an external device, another Synology NAS, an rsync server, or a public cloud to ensure data safety.
    • Synology Drive : Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
    • Microsoft 365 / G Suite : On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.

    Engineered for reliability, backed by Synology

    DS1821+ is designed to reliably store your data and is backed by Synology's three-year hardware warranty.

    Powered by Synology DSM

    Central Management System

    Manage multiple Synology NAS servers simultaneously on a centralized interface to increase business efficiency.

    Synology MailPlus

    Secure, reliable, and private mail server solution with an intuitive and modern mail client.

    Synology High Availability

    Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.


    Comprehensive built-in security tools are constantly updated to protect your devices against evolving threats.

    Synology Drive

    A versatile solution for file management and synchronization.

    Surveillance Station

    Complete surveillance solution for recording, monitoring, and management.



    Works best with Synology solid-state drives

    Engineered to handle intensive 24/7 workloads, Synology SSDs are designed to provide consistent high-performance.

    2.5” SSD SAT5200

    M.2 SSD SNV3400

    • 1 Status indicator
    • 2 Alert indicator
    • 3 Power button and indicator
    • 4 LAN indicator
    • 5 Drive status indicator
    • 6 Drive tray
    • 7 Drive tray lock
    • 8 USB 3.2 Gen 1 port
    • 9 Power port
    • 10 System fan
    • 11 PCIe expansion slot
    • 12 Kensington Security Slot
    • 13 Expansion port
    • 14 1GbE RJ-45 port
    • 15 Reset Button
    • 16 USB 3.2 Gen 1 port



    CPU Model AMD Ryzen V1500B
    CPU Architecture 64-bit
    CPU Frequency 4-core 2.2 GHz
    Hardware Encryption Engine (AES-NI)


    System Memory 4 GB DDR4 ECC SODIMM
    Memory Module Pre-installed 4 GB (4 GB x 1)
    Total Memory Slots 2
    Maximum Memory Capacity 32 GB (16 GB x 2)
    • 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.
    • 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.


    Drive Bays 8
    Maximum Drive Bays with Expansion Unit 18 (DX517 x 2)
    M.2 Drive Slots 2 (NVMe)
    Compatible Drive Type* (See all supported drives)
    • 3.5" SATA HDD
    • 2.5" SATA HDD
    • 2.5" SATA SSD
    • M.2 2280 NVMe SSD
    Maximum Single Volume Size* 108 TB
    Hot Swappable Drive
    • "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 108TB.

    External Ports

    RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
    USB 3.0 Port 4
    eSATA Port 2


    PCIe Expansion 1 x Gen3 x8 slot (x4 link)

    File System

    Internal Drives
    • Btrfs
    • EXT4
    External Drives
    • Btrfs
    • EXT4
    • EXT3
    • FAT
    • NTFS
    • HFS+
    • exFAT*
    Notes exFAT Access is purchased separately in Package Center.


    Size (Height x Width x Depth) 166 mm x 343 mm x 243 mm
    Weight 6 kg


    System Fan 120 mm x 120 mm x 2 pcs
    Fan Speed Mode
    • Full-Speed Mode
    • Cool Mode
    • Quiet Mode
    Easy Replacement System Fan
    Brightness Adjustable Front LED Indicators
    Power Recovery
    Noise Level* 22.2 dB(A)
    Scheduled Power On / Off
    Wake on LAN / WAN
    Power Supply Unit / Adapter 250 W
    AC Input Power Voltage 100 V to 240 V AC
    Power Frequency 50/60 Hz, Single Phase
    Power Consumption* 59.8 W (Access)
    26.18 W (HDD Hibernation)
    British Thermal Unit 204.05 BTU/hr (Access)
    89.33 BTU/hr (HDD Hibernation)
    • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX 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%


    Operating Temperature 0°C to 40°C (32°F to 104°F)
    Storage Temperature -20°C to 60°C (-5°F to 140°F)
    Relative Humidity 5% to 95% RH


    • FCC
    • CE
    • BSMI
    • EAC
    • CCC
    • KC
    • VCCI
    • RCM


    3-year hardware warranty, extendable to 5-year coverage - EW201
    Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)


    RoHS Compliant

    Packaging Content

    • Main Unit X 1
    • Accessory Pack X 1
    • AC Power Cord X 1
    • RJ-45 LAN Cable X 2
    • Quick Installation Guide X 1

    Optional Accessories

    • DDR4 ECC SODIMM: D4ES01-4G/D4ES01-8G/D4ECSO-2666-16G
    • Expansion Units: DX517
    • 2.5" SATA SSD: SAT5200
    • M.2 2280 NVMe SSD: SNV3400
    • 10GbE Network Interface Card: E10G18-T2/E10G18-T1/E10G17-F2
    • VisualStation: VS960HD/VS360HD
    • Surveillance Device License Pack
    Notes All memory modules will operate at the maximum frequency specified by the CPU manufacturer.




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