4 Bay Synology DS423+ Gigabit NAS

CPU

CPU ModelIntel Celeron J4125CPU Quantity1CPU Architecture64-bitCPU Frequency4-core 2.0 (base) / 2.7 (turbo) GHzHardware Encryption Engine (AES-NI)

Memory

System Memory2 GB DDR4 non-ECC SODIMMTotal Memory Slots1Maximum Memory Capacity6 GB (2 GB + 4 GB)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.
• For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product.

Storage

Drive Bays4M.2 Drive Slots2 (NVMe)Compatible Drive Type* (See all supported drives)

• 3.5" SATA HDD
• 2.5" SATA SSD
• M.2 2280 NVMe SSD

Hot Swappable Drive*Notes

• The hot swappable drive feature is not supported by M.2 SSD slots.
• "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*2Notes

• 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.

File System

Internal Drives

• Btrfs
• EXT4

External Drives

• Btrfs
• EXT4
• EXT3
• FAT
• NTFS
• HFS+
• exFAT

Appearance

Size (Height x Width x Depth)166 mm x 199 mm x 223 mmWeight2.18 kg

Others

System Fan92 mm x 92 mm x 2 pcsFan Speed Mode

• Full-Speed Mode
• Cool Mode
• Quiet Mode

Brightness Adjustable Front LED IndicatorsPower RecoveryNoise Level*19.8 dB(A)Scheduled Power On / OffWake on LAN / WANPower Supply Unit / Adapter90 WAC Input Power Voltage100V to 240V ACPower Frequency50/60 Hz, Single PhasePower Consumption28.3 W (Access)
8.45 W (HDD Hibernation)British Thermal Unit96.5 BTU/hr (Access)
28.81 BTU/hr (HDD Hibernation)Notes

• For more information on how power consumption is measured, refer to this article.
• Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle stae. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75°C; Humidity: 58.2-61.8%

Temperature

Operating Temperature0°C to 40°C (32°F to 104°F)Storage Temperature-20°C to 60°C (-5°F to 140°F)Relative Humidity5% to 95% RH

Certification

• FCC
• CE
• BSMI
• VCCI
• RCM
• UKCA
• EAC
• CCC
• KC

Warranty

3-year hardware warranty, extendable to 5 years with EW201Notes

• Availability varies by region. Before purchasing, please visit the official web pages of EW201/202 and Extended Warranty Plus for a list of eligible regions.
• 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

• DDR4 non-ECC SODIMM: D4NESO-2666-4G
• 3.5" SATA HDD: HAT5300
• 2.5" SATA SSD: SAT5210
• M.2 2280 NVMe SSD: SNV3410
• VisualStation: VS360HD
• Surveillance Device License Pack

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

Our Summary:  The 423+ is a reliable general use NAS for home or small business use.  With a celeron CPU that includes an integrated graphics processor, it can handle server side processing such as multimedia conversions better than ARM based equivalents.

Additional Information from Synology:  4 Bay Synology DS423+ Gigabit NAS

Hard drive compatibility list as tested by Synology: 3rd Party HDD list for 423+

Compatibility lists are not always complete or up to date, and models not on this list may also work (especially when in the same range eg ironwolf).  If in doubt, please email us.

In additional to adding HDDs, many people add a single 4GB DDR4 SODIMM stick to bring total RAM up to 6GB.  Generally a worthwhile and cost effective upgrade if using the NAS for more than basic file services.  Most brands of models of DDR4 SODIMM will work without issue.  DDR4 SODIMM RAM here

In depth review from nascompares  Synology DS423+ NAS Review and their followup 6 months later Synology DS423+ NAS 6 Months Later - Still Worth it?