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Synology RS4021XS+ 16-Bay Rackstation

  • Solid data security and lightning-fast performance

  • Dual PSUs provide protection against a PSU failure

  • Intel Xeon D-1541 8-core 2.1 (base) / 2.7 (turbo) GHz

  • Built-in dual-port 10GbE, 16 GB ECC DDR4 Up to 64 GB

SAN/NAS Storage System - Intel Xeon D-1541 Octa-core (8 Core) 2.10 GHz - 16 x HDD Supported - 0 x HDD Installed - 16 x SSD Supported - 0 x SSD Installed - 16 GB RAM DDR4 SDRAM - Serial ATA Controller - RAID Supported 0, 1, 5, 6, 10, Basic, JBOD, RAID F1 - 16 x Total Bays - 16 x 2.5"/3.5" Bay - Gigabit Ethernet, 10 Gigabit Ethernet - 2 USB Port(s) - Network (RJ-45) - DiskStation Manager - CIFS, AFP, NFS, FTP, WEBDAV, SMB 1.0, SMB 2.0, SMB 3.0, NFSv3, NFSv4, NFS RS4021XS+ DISKLESS



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    The 16-bay RS4021xs+ provides solid data security and lightning-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.

    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.

    Extra Specifications for Synology RS4021XS+ 16-Bay Rackstation

    Main Specifications
    Device TypeNAS Server
    Form Factor3U Rackmount
    Dimensions (WxDxH)Height 132.3 mm x Width 482 mm x Depth 656.5 mm
    WeightNet Weight: 38 lbs (17.4 kg) - Gross Weight: 63 lbs (28.8 kg)
    Enclosure ColorBlack
    Embedded Processor1x Intel Xeon D-1541, 8-core 2.1 (base) / 2.7 (turbo) GHz
    System Memory
    Memory Installed16 GB (16 GB x 1)
    Memory Type16 GB DDR4 ECC UDIMM
    Up to 64 GB (16 GB x 4)
    Total Memory Slots: 4
    Expansion / Connectivity
    Expansion Bays Total (Free)16x Hot Swappable Drive 3.5" SATA HDD or 2.5" SATA SSD
    Expansion Slots Total (Free)2 x Gen3 x8 slots (x8 link)
    On-Board Devices
    Network ControllersRJ-45 1GbE LAN Port - 4 (with Link Aggregation / Failover support)
    RJ-45 10GbE LAN Port - 2 (with Link Aggregation / Failover support)
    Input / Output
    USBUSB 3.2 Gen 1 Port (2)
    Power Supply
    Power Supply800 W Redundant Power Supply
    CertificationFCC, CE, BSMI, VCCI, RCM, EAC, CCC, KC, UL
    Operating EnvironmentOperating Temperature: 0°C to 35°C (32°F to 95°F)
    Relative humidity: 5% to 95% RH
    Storage Temperature: -20°C to 60°C (-5°F to 140°F)
    Compliant StandardsRoHS
    Parts List - (Items Included)
    Parts1x Accessory Pack
    Cable2x AC Power Cord
    NamePart NumberQuantityDescription

    Warranty:5 years
    Phone No.:305-640-0300
    URL:Click here for Manufacturer Website
    Coverage:Replacement or repair
    Average Service Time:1-2 weeks

    If you need Technical Support for this item please contact:

    Type of Support:FULL
    Phone No.:(425) 296-3177
    URL:Click here for Manufacturer Website