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Brand: Synology
Product Code: DS423
Availability: 10
Weight: 2.21kg
Dimensions: 23.00cm x 16.80cm x 18.40cm

Synology 4-Bay DiskStation DS423 (Diskless)

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DSM Specifications
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.
Internal Drives
  • Btrfs
  • ext4
  External Drives
  • Btrfs
  • ext4
  • ext3
  • FAT
  • NTFS
  • HFS+
  • exFAT
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.
Maximum Local User Accounts 1,024
  Maximum Local Groups 256
  Maximum Shared Folder 256
  Maximum Shared Folder Sync Tasks 4
Maximum Hybrid Share Folders 5
Folder and Package Backup  
Syslog Events per Second 400
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.
 
Download Station
Maximum Concurrent Download Tasks 80
Maximum iSCSI Target Number 128
  Maximum LUN 256
  LUN Clone/Snapshot, Windows ODX  
DLNA Compliance  
Facial Recognition  
Maximum Snapshots per Shared Folder 256
  Maximum of System Snapshots 4,096
Default Licenses (Additional cameras require purchase of licenses)
  Suggested 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
  Suggested 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, with their default memory configuration, and 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.
  • The maximum number of camera stream outputs is 2 times the suggested maximum number of IP cameras.
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.
Suggested Users 500
  Notes
  • Suggested users is derived from testing in an environment with 60% idle users (each logging in and viewing documents) and 40% active users (each executing random actions at intervals of 20 to 40 seconds) operating within documents, each document having 30 users. Learn more
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Maximum Connections 20
NAS
Compatible Drive Type 3.5
CPU Architecture 64-bit
CPU Core 4
CPU Frequency 1.7 GHz
CPU Model Realtek RTD1619B
CPU Quantity 1
Drive Bays 4
Hardware Encryption Engine YES
Hot Swappable Drive YES
Memory 2 GB DDR4 non-ECC
Power Supply Unit / Adapter 90 watts 100V to 240V AC 50/60 Hz, Single Phase
RJ-45 1GbE LAN Port 2
System Fan 80 mm x 80 mm x 2 pcs
USB 3.2 Gen 1 Port 2
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