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White rectangular four-bay desktop NAS unit with front drive trays

Synology Inc.

Synology Inc. DS423 4-Bay Desktop NAS 2 GB DDR4

SKU CH-SQS1-1FQ4X MPN DS423

A 4-bay desktop NAS supporting up to 72 TB of SATA storage with 2 GB DDR4 memory, dual 1GbE ports and quiet 22.9 dB operation

  • TypeDesktop NAS
  • Ports2 x 1GbE / 2 x USB 3.2 Gen 1
  • HDD Interface4 x SATA (4 x Bay)
  • Form Factor4-Bay
  • ProcessorRealtek RTD1619B
  • Installed Memory2 GB DDR4

Form Factor 4-Bay

Option DS423

  • Store up to 72 TB across four SATA bays
  • Read speeds over 223 MB/s for fast file access
  • Quiet operation at 22.9 dB in typical use
  • Dual 1 GbE ports with Link Aggregation support
  • Btrfs file system enables snapshots and data integrity

Versatile 4-Bay Desktop NAS

The Synology DS423 is a four-bay desktop network-attached storage system built around a Realtek RTD1619B processor and 2 GB of DDR4 memory. It provides two 1GbE ports and two USB 3.2 Gen 1 ports for connectivity. The unit accepts up to four 3.5-inch or 2.5-inch SATA drives to create a private cloud hub for file backup, media streaming, and surveillance footage storage. It supports up to 30 IP cameras for versatile video monitoring.

Upgrade from single-drive or two-bay units

Moving from a single external drive or a two-bay NAS adds the ability to run RAID configurations for data redundancy while expanding raw capacity to 72 TB. The jump is worth it when you need to protect against drive failure without sacrificing all usable space, or when your media library and backup sets have outgrown a smaller enclosure. The dual LAN ports also enable link aggregation for higher throughput than a single gigabit connection can provide.

Sustained operation with low noise and power

Under continuous access the DS423 draws 32.41 W and runs at a quiet 22.9 dB, making it suitable for always-on deployment in a home office or shared workspace. When drives enter hibernation, power consumption drops to 4.97 W. The operating temperature range spans 0 °C to 40 °C, and the Btrfs file system helps maintain data integrity during long-running workloads such as incremental backups or surveillance recording.

Pontos fortes

  • Store up to 72 TB across four SATA bays
  • Read speeds over 223 MB/s for fast file access
  • Quiet operation at 22.9 dB in typical use
  • Dual 1 GbE ports with Link Aggregation support
  • Btrfs file system enables snapshots and data integrity

Especificações

BrandSynology
ModelDS423
TypeDesktop NAS
Ports2 x 1GbE / 2 x USB 3.2 Gen 1
HDD Interface4 x SATA (4 x Bay)
Form Factor4-Bay
ProcessorRealtek RTD1619B
Installed Memory2 GB DDR4
Included HDD CapacityDiskless System
Max Capacity72TB
Drive Compatibility4 x 3.5" or 2.5" SATA HDD/SSD (drives not included)
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
Supported ProtocolsSMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, and VPN (PPTP,
OpenVPN™, L2TP)
PowerAC input power: voltage 100 V to 240 V AC
Power frequency: 50/60 Hz, single phase
Power Consumption32.41 W (Access)
4.97 W (HDD Hibernation)
TemperatureOperating environment Temperature: 0°C to 40°C (32°F to 104°F)
Storage environment Temperature: -20°C to 60°C (-5°F to 140°F)
HumidityOperating environment Relative humidity: 8% to 80% RH
Storage environment Relative humidity: 8% to 80% RH
UsageBackup & stream media through personal cloud
Dimensions184 x 168 x 230 mm
Weight2.21 kg
Package Contents1 x DS423 main unit
1 x Quick Installation Guide
1 x Accessory pack
1 x AC power cord
1 x AC power adapter
2 x RJ-45 LAN cables
Peso de envio3.52 kg
Dimensões da embalagem279 × 254 × 229 mm

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Perguntas sobre este artigo

What drive sizes and interface does the 4-bay DS423 accept?

The DS423 has four SATA bays that each take a 3.5-inch or 2.5-inch SATA HDD or SSD, up to a total of 72 TB.

How do I install drives in the DS423 and what step is often missed?

Slide each drive into a bay until the SATA connector seats, secure it with the supplied screws, then create a storage pool and volume in DSM before storing data.

Which components in the DS423 may need replacement over time?

The installed 2 GB DDR4 memory is soldered and not user-replaceable; the cooling fan and power adapter are the only field-replaceable parts.

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