CPU

CPU Model

• AMD Ryzen V1500B

CPU Quantity

• 1

CPU Architecture

• 64-bit

CPU Frequency

• 4-core 2.2 GHz

Hardware Encryption Engine (AES-NI)    

• Yes

Memory

System Memory

• 4 GB DDR4 ECC UDIMM

Memory Module Pre-installed

• 4 GB (4 GB x 1)

Total Memory Slots

• 2

Maximum Memory Capacity

• 32 GB (16 GB x 2)

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.
• 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

• 12
• Bundled with 48TB of storage capacity (includes 12 x 4TB WD Red Pro HDDs).

Maximum Drive Bays with Expansion Unit (sold separately)

• 24 (RX1217/RX1217RP x 1)

Compatible Drive Type

• 3.5″ SATA HDD
• 2.5″ SATA HDD
• 2.5″ SATA SSD

Maximum Single Volume Size

• 108 TB

Hot Swappable Drive   

• Yes

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 108TB.

External Ports

RJ45 1GbE LAN Port

• 4 (with Link Aggregation / Failover support)

USB 3.2 Gen 1 Port

• 2

Expansion Port

• 1

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

• 1 x Gen3 x8 slot (x4 link)

File System

Internal Drives   

• Btrfs
• EXT4

External Drives  

• Btrfs
• EXT4
• EXT3
• FAT
• NTFS
• HFS+
• exFAT
  • exFAT Access is purchased separately

Appearance

Form Factor (RU)

• 2U

Size (Height x Width x Depth)    

• 88 mm x 482 mm x 578 mm

Weight    

• 11.9 kg

Rack Installation Support

• 4-post 19″ rack

Others

System Fan

• 60 mm x 60 mm x 3 pcs

Fan Speed Mode    

• Full-Speed Mode
• Cool Mode
• Quiet Mode

Easy Replacement System Fan    

• Yes

Power Recovery    

• Yes

Noise Level

• 54 dB(A)

Scheduled Power On / Off    

• Yes

Wake on LAN / WAN    

• Yes

Power Supply Unit / Adapter 

• 350 W

Redundant Power Supply   

• Yes

Power Frequency   

• 50/60 Hz, Single Phase

Power Consumption

• 91.76 W (Access) 48.21 W (HDD Hibernation)

British Thermal Unit    

• 313.31 BTU/hr (Access) 164.61 BTU/hr (HDD Hibernation)
  • Notes:   
    • 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%

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
• EAC
• CCC
• KC
• UL
• VCCI
• RCM

Warranty

• 3 Years

Environment

• RoHS Compliant

DSM Specifications

Storage Management

Maximum Internal Volume Number

• 64

SSD Read / Write Cache (White Paper)    

• Yes

SSD TRIM    

• Yes

Supported RAID Type    

• Synology Hybrid RAID
• Basic
• JBOD
• RAID 0
• RAID 1
• RAID 5
• RAID 6
• RAID 10

RAID Migration    

• Basic to RAID 1
• Basic to RAID 5
• RAID 1 to RAID 5
• RAID 5 to RAID 6

Volume Expansion with Larger HDDs    

• Synology Hybrid RAID
• RAID 1
• RAID 5
• RAID 6
• RAID 10

Volume Expansion by Adding a HDD  

• Synology Hybrid RAID
• JBOD
• RAID 5
• RAID 6

Global Hot Spare Supported RAID Type    

• Synology Hybrid RAID
• RAID 1
• RAID 5
• RAID 6
• RAID 10

File Services

File Protocol

• SMB/AFP/NFS/FTP/WebDAV

Maximum Concurrent SMB/AFP/FTP Connections

• 1,000

Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion)

• 2,000

Windows Access Control List (ACL) Integration    

• Yes

NFS Kerberos Authentication    

• Yes

Notes   

• Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
• The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.

Account & Shared Folder

Maximum Local User Accounts

• 2,048

Maximum Local Groups

• 256

Maximum Shared Folder

• 512

Maximum Shared Folder Sync Tasks

• 16

Synology High Availability    

• Yes

Log Center – Syslog Events per Second

• 800

Virtualisation

VMware vSphere with VAAI    

• Yes

Windows Server 2016   

• Yes

Windows Server 2019    

• Yes

Citrix Ready 

• Yes

OpenStack  

• Yes

General Specifications

Networking Protocols

• SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV

Supported Browsers    

• Google Chrome
• Firefox
• Microsoft Edge
• Internet Explorer 11 onwards
• Safari 13 onwards
• Safari (iOS 13.0 onwards)
• Google Chrome (Android 11.0 onwards)

Package Contents

• 1 x Synology RS2421+ Enclosure
• 12 x WD Red Pro HDDs
• 1 x Accessory Pack
• 2 x AC Power Cord
• 1 x Quick Installation Guide