Synology RackStation RS4021xs+

Synology RackStation RS4021xs+

Additional information

Key Features

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.
  • Compute: Intel® Xeon® D-1541 8-core 2.1 GHz
  • Networking: Built-in dual-port 10GbE
  • Memory: 16 GB ECC DDR4 Up to 64 GB
  • Scalability: Up to 40 drive bays with RX1217RP/RX1217

CPU

CPU ModelCPU QuantityCPU CoreCPU ArchitectureCPU FrequencyHardware Encryption Engine
Intel Xeon D-15411 (per controller)864-bit2.1 (base) / 2.7 (turbo) GHzYes

Memory

System MemoryMemory Module Pre-installedTotal Memory SlotsMaximum Memory Capacity
16 GB DDR4 ECC UDIMM16 GB (16 GB x 1)464 GB (16 GB x 4)

Storage

Drive BaysMaximum Drive Bays with Expansion UnitCompatible Drive Type* (See all supported drives)Hot Swappable Drive*
1640 (RX1217 x 2)3.5″ SATA HDD/ 2.5″ SATA SSDYes

External Ports

RJ-45 1GbE LAN PortRJ-45 10GbE LAN PortUSB 3.2 Gen 1 Port*Expansion PortExpansion Port Type
4222Infiniband

PCIe Expansion

2 x Gen3 x8 slots (x8 link)

Appearance

Form Factor (RU)Size (Height x Width x Depth)WeightRack Installation Support*
3U132.3 mm x 482 mm x 656.5 mm17.4 kg4-post 19″ rack (Synology Rail Kit – RKS-02)

Others

417.48 watts (Access 145.8 watts (HDD Hibernation)1425.45 BTU/hr (Access)

System FanFan Speed ModeEasy Replacement System FanPower RecoveryNoise Level*Scheduled Power On / OffWake on LAN / WANPower Supply Unit / AdapterRedundant Power SupplyAC Input Power VoltagePower FrequencyPower ConsumptionBritish Thermal Unit
80 mm x 80 mm x 3 pcsFull-Speed Mode/ Cool Mode/ Quiet ModeYesYes51.3 dB(A)44.7 dB(A)Yes800 watts/ 550 watts*Yes100 V to 240 V AC50/60 Hz, Single Phase145.79 watts (Access)/ 62.68 watts (HDD Hibernation)497.14 BTU/hr (Access)/ 213.74 BTU/hr (HDD Hibernation)

Temperature

Operating TemperatureStorage TemperatureRelative Humidity
0°C to 35°C (32°F to 95°F)-20°C to 60°C (-5°F to 140°F)5% to 95% RH

Certification

FCC/ CE/ BSMI/ VCCI/ RCM/ EAC/ CCC/ KC/ UL

Warranty

5 Years

Environment

RoHS Compliant

Packaging Content

  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 2
  • Quick Installation Guide X 1

Optional Accessories

  • DDR4 ECC UDIMM: D4EC-2666-8G/D4EC-2666-16G
  • Expansion Units: RXD1219sas
  • Enterprise Series 3.5″ SAS HDD: HAS5300 Series
  • Enterprise Series 3.5″ SAS HDD: HAS5300 Series
  • M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1
  • M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1
  • 25GbE Network Interface Card: E25G30-F2
  • 10GbE Network Interface Card: E10G21-F2/E10G30-T2/E10G18-T1
  • Rail Kit Sliding: RKS-02

Accelerated Performance

Up to 234,698 random read IOPS and 6,258 MB/s sequential read performance1.


Powerful Compute

Host multiple compute-intensive services with its 8-core
Intel® processor.


Upgradability

Two PCIe expansion slots allow for M.2 NVMe cache adapters and high-bandwidth network cards.


Redundant Power

Ensure business continuity with two redundant power supplies.


On-demand Scalability

Supports up to 40 drive bays using two RX1217(RP).


Optimized for Data Protection and Integrity

Powered by Synology DSM, our unified data management operating
system, and built upon the Btrfs file system.

Synology RackStation RS4021xs+ is a powerful 16-bay 3U storage solution designed for high throughput and data integrity

Download Datasheet

Support

Find answers the question you have about the product

Live Support

Enquire Now

Open chat
Hello 👋
Can we help you?