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Synology RS4021xs+ RackStation 16-Bay Scalable NAS ( RAIL KIT optional ) with Redundant Power (USE SYNOLOGY DRIVES ONLY).

SKU
371082
Brand
Synology
Manufacturer Link
MPN
RS4021xs+
Manufacturer Product Link
Warranty
Standard Manufacturer's Warranty
Availability
Preorder (Contact Us)
Freight Estimate
$11,931.00
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CPU

 CPU Model Intel Xeon D-1541
  CPU Quantity 1
  CPU Architecture 64-bit
  CPU Frequency 8-core 2.1 (base) / 2.7 (turbo) GHz
  Hardware Encryption Engine (AES-NI)  

Memory

 System Memory 16 GB DDR4 ECC UDIMM
  Memory Module Pre-installed 16 GB (16 GB x 1)
  Total Memory Slots 4
  Maximum Memory Capacity 64 GB (16 GB x 4)
  Notes
  • 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.

Storage

 Drive Bays 16
  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 memory required)
  • 108 TB
  Hot Swappable Drive  
  Notes
  • It is strongly recommended that you only install drives listed on your device's compatibility list. Storage pool and volume creation processes may fail when using unverified drives. Synology is unable to provide technical support for devices using unsupported components.
  • "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).

External Ports

 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* 2
  Expansion Port 2
  Notes The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.

PCIe

 PCIe Expansion 2 x Gen3 x8 slots (x8 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.

Appearance

 Form Factor (RU) 3U
  Size (Height x Width x Depth) 132.3 mm x 482 mm x 656.5 mm
  Weight 17.4 kg
  Rack Installation Support* 4-post 19" rack (Synology Rail Kit - RKS1317)
  Notes The rail kit is sold separately

Others

 System Fan 80 mm x 80 mm x 3 pcs
  Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  Easy Replacement System Fan  
  Power Recovery  
  Noise Level* 44.7 dB(A)
  Scheduled Power On / Off  
  Wake on LAN / WAN  
  Power Supply Unit / Adapter 800 W
  Redundant Power Supply  
  AC Input Power Voltage 100 V to 240 V AC
  Power Frequency 50/60 Hz, Single Phase
  Power Consumption* 145.79 W (Access)
62.68 W (HDD Hibernation)
  British Thermal Unit 497.14 BTU/hr (Access)
213.74 BTU/hr (HDD Hibernation)
  Notes
  • 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%

Temperature

 Operating Temperature 0°C to 35°C (32°F to 95°F)
  Storage Temperature -20°C to 60°C (-5°F to 140°F)
  Relative Humidity 5% to 95% RH

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

Warranty

 5 Years
  Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)

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