Synology Quad bay NAS DiskStation DS423

CPU

CPU Model

Realtek RTD1619B

CPU Quantity

1

CPU Architecture

64-bit

CPU Frequency

4-core 1.7 GHz

Hardware Encryption Engine

Memory

System Memory

2 GB DDR4 non-ECC

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.

Storage

Drive Bays

4

Compatible Drive Type* (See all supported drives)

·       3.5" SATA HDD

·       2.5" SATA SSD

Hot Swappable Drive*

Notes

"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)

USB 3.2 Gen 1 Port*

2

Notes

·       This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.

·       The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.

Appearance

Size (Height x Width x Depth)

184 mm x 168 mm x 230 mm

Weight

2.21 kg

Others

System Fan

80 mm x 80 mm x 2 pcs

Fan Speed Mode

·       Full-Speed Mode

·       Cool Mode

·       Quiet Mode

Brightness Adjustable Front LED Indicators

Power Recovery

Noise Level*

20.6 dB(A)

Scheduled Power On / Off

Wake on LAN / WAN

Power Supply Unit / Adapter

90 W

AC Input Power Voltage

100V to 240V AC

Power Frequency

50/60 Hz, Single Phase

Power Consumption

32.41 W (Access)
4.97 W (HDD Hibernation)

British Thermal Unit

110.52 BTU/hr (Access)
16.95 BTU/hr (HDD Hibernation)

Notes

·       For more information on how power consumption is measured, refer to this article.

·       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 40°C (32°F to 104°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

·       UKCA

·       EAC

·       CCC

·       KC

Warranty

2-year hardware warranty, extendable to 4 years with Extended Warranty Plus

Notes

The warranty period starts from the purchase date as stated on your purchase receipt.

Environment

RoHS Compliant

Packaging Content

·       Main Unit X 1

·       Accessory Pack X 1

·       AC Power Adapter X 1

·       AC Power Cord X 1

·       RJ-45 LAN Cable X 2

·       Quick Installation Guide X 1

Optional Accessories

·       Enterprise Series 3.5" SATA HDD: HAT5300 Series

·       Plus Series 3.5" SATA HDD: HAT3300 Series

·       Enterprise Series 2.5" SATA SSD: SAT5200 Series

DSM Specifications

Storage Management

Maximum Single Volume Size

108 TB

Maximum Internal Volume Number

64

SSD TRIM

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

Global Hot Spare Supported RAID Type

·       Synology Hybrid RAID

·       RAID 1

·       RAID 5

Notes

·       Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.

·       Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.

File System

Internal Drives

·       Btrfs

·       ext4

External Drives

·       Btrfs

·       ext4

·       ext3

·       FAT

·       NTFS

·       HFS+

·       exFAT

File Services

File Protocol

·       SMB

·       AFP

·       NFS

·       FTP

·       WebDAV

·       Rsync

Maximum Concurrent SMB/AFP/FTP Connections

200

Windows Access Control List (ACL) Integration

NFS Kerberos Authentication

Notes

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

1,024

Maximum Local Groups

256

Maximum Shared Folder

256

Maximum Shared Folder Sync Tasks

4

Hybrid Share

Maximum Hybrid Share Folders

5

Hyper Backup

Folder and Package Backup

Log Center

Syslog Events per Second

400

General Specifications

Supported Protocols

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

Supported Browsers

·       Chrome

·       Firefox

·       Edge

·       Safari

Supported Language

English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文

Notes

For an updated list of supported browser versions, check the DSM Technical Specifications.

Add-on Packages view the complete package list

Synology Chat

Download Station

Maximum Concurrent Download Tasks

80

SAN Manager

Maximum iSCSI Target Number

128

Maximum LUN

256

LUN Clone/Snapshot, Windows ODX

Media Server

DLNA Compliance

Synology Photos

Facial Recognition

Snapshot Replication

Maximum Snapshots per Shared Folder

256

Maximum of System Snapshots

4,096

Surveillance Station

Default Licenses

2 (Additional cameras require purchase of licenses)

Maximum IP Cameras and Total FPS (H.264)

·       720p: 30 channels, 900 FPS

·       1080p: 30 channels, 600 FPS

·       3M: 30 channels, 300 FPS

·       5M: 20 channels, 200 FPS

·       4K: 15 channels, 150 FPS

Maximum IP Cameras and Total FPS (H.265)

·       720p: 30 channels, 900 FPS

·       1080p: 30 channels, 800 FPS

·       3M: 30 channels, 500 FPS

·       5M: 30 channels, 450 FPS

·       4K: 20 channels, 200 FPS

Notes

·       Performance figures are obtained from testing conducted with the device fully populated with drives under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.

·       Use NVR Selector to quickly find a suitable model based on your requirements.

Synology Drive

Recommended Number of Concurrent Sync Clients

200 (the number of connections that can be maintained when the recommended number of hosted files was reached)

Recommended Number of Hosted Files

500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)

Notes

·       Exceeding the recommended numbers above will not block application operations, but may result in longer response time.

·       Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.

Synology Office

Suggested Maximum Users

500

Suggested Concurrent Users

200

Notes

·       Multiple files were opened for testing and each file was edited by 30 users simultaneously.

·       Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM

Video Station

VPN Server

Maximum Connections

20