Controller

Number of Controller Module

2

CPU

CPU Model

Intel Xeon D-1521

CPU Quantity

1 (per controller)

CPU Core

4

CPU Architecture

64-bit

CPU Frequency

2.4 (base) / 2.7 (turbo) GHz

Hardware Encryption Engine

✓

Memory

System Memory

8 GB DDR4 ECC UDIMM (per controller)

Memory Module Pre-installed

8 GB (8 GB x 1) (per controller)

Total Memory Slots

4 (per controller)

Maximum Memory Capacity

64 GB (16 GB x 4) (per controller)

Notes

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.
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.

Storage

Drive Bays

12

Maximum Drive Bays with Expansion Unit

36 (RXD1219sas x 2)

Compatible Drive Type* (See all supported drives)

2.5" dual-port SAS SSD
2.5" dual-port SAS HDD
3.5" dual-port SAS HDD

Hot Swappable Drive*

✓

Notes

Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability.
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.

External Ports

RJ-45 1GbE LAN Port

2 (with Link Aggregation / Failover support) (per controller)

RJ-45 10GbE LAN Port

1 (per controller)

PCIe

PCIe Expansion

1 x Gen3 x8 slot (x8 link) (per controller)

Add-In-Card Support

10GbE NIC
25GbE NIC
FC HBA

File System

Internal Drives

Btrfs

Appearance

Size (Height x Width x Depth)

88 mm x 430.5 mm x 692 mm

Size (Height x Width x Depth) (with server ears)

88 mm x 482 mm x 724 mm

Weight

19.7 kg

Rack Installation Support*

4-post 19" rack (Synology Rail Kit - RKS-02)

Notes

The rail kit is sold separately

Others

System Fan

60 mm x 60 mm x 2 (per controller)

Fan Speed Mode

Full-Speed Mode
Cool Mode
Quiet Mode

Easy Replacement System Fan

✓

Power Recovery

✓

Noise Level*

51.3 dB(A)

Power Supply Unit / Adapter

500W

Redundant Power Supply

✓

AC Input Power Voltage

100 V to 240 V AC

Power Frequency

50/60Hz, Single Phase

Power Consumption*

417.48 W (Access)

British Thermal Unit

1425.45 BTU/hr (Access)

Notes

Power consumption is measured when it is fully loaded with Seagate ST3600057SS hard drive(s).
Noise Level Testing Environment: Fully loaded with Seagate ST8000NM0075 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology server 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

Certification

CE
FCC
BSMI
VCCI
RCM
UKCA
KC
EAC
CCC

Warranty

Warranty

5 Years

Notes

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

Environment

Environment

RoHS Compliant

Packaging Content

Packaging Content

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

Optional Accessories

Optional Accessories

DDR4 ECC UDIMM: D4EC-2666-8G/D4EC-2666-16G
Expansion Units: RXD1219sas
Enterprise Series 3.5" SAS HDD: HAS5300 Series
25GbE Network Interface Card: E25G30-F2
10GbE Network Interface Card: E10G30-F2/E10G30-T2/E10G18-T1
Rail Kit Sliding: RKS-02

Notes

All memory modules will operate at the maximum frequency specified by the CPU manufacturer.