4-bay compact desktop NAS
Synology DiskStation DS423+ 4-Bay NAS
The Synology DiskStation DS423+ is a compact four-bay desktop NAS for home and small-business storage, with an Intel Celeron processor, expandable memory and two M.2 NVMe slots.
- Processor
- Intel Celeron J4125
- Memory
- 2 GB DDR4 non-ECC
- Drive bays
- 4
- Networking
- 2 × 1GbE RJ-45
Create a compact private-cloud hub for files, photos and backups
The DS423+ combines four hot-swappable SATA bays, two M.2 NVMe slots and dual 1GbE networking in a compact desktop chassis. Synology DSM provides a central platform for file sharing, backup, photo organisation and supported surveillance services while keeping data under the owner’s control.
Four hot-swappable bays
Install compatible 3.5-inch SATA HDDs or 2.5-inch SATA SSDs for centralised storage.
Dual M.2 NVMe slots
Use compatible M.2 2280 NVMe SSDs for verified cache or storage-pool configurations.
Expandable memory
The 2 GB DDR4 non-ECC system can be expanded to a verified maximum of 6 GB.
Dual 1GbE networking
Two 1GbE RJ-45 ports provide built-in wired connectivity.
Compact desktop chassis
The 166 × 199 × 223 mm enclosure provides four bays without a rack requirement.
DSM data services
Manage shared files, backups, photos and supported surveillance workloads from one interface.
Who is the Synology DS423+ best for?
A strong choice for
- Home and family file storage
- Small-business shared storage
- Photo and document organisation
- Device and application backup
- Compact four-bay private cloud deployments
Consider another model if you need
- You need built-in or optional 10GbE
- You need external drive-bay expansion
- You need ECC memory
- You need more than 6 GB memory
Key specifications
- Model
- DS423+
- Product type
- 4-bay compact desktop NAS
- Processor
- Intel Celeron J4125, 4 cores
- CPU frequency
- 2.0 GHz base / 2.7 GHz turbo
- System memory
- 2 GB DDR4 non-ECC
- Maximum memory
- 6 GB (2 GB + 4 GB)
- Drive bays
- 4
- M.2 slots
- 2 × M.2 2280 NVMe
- Networking
- 2 × 1GbE RJ-45
- USB ports
- 2 × USB 3.2 Gen 1
- Dimensions
- 166 × 199 × 223 mm
- Warranty
- 3 years; extendable to 5 years with EW201 or Extended Warranty Plus
Full technical specifications
Processor and memory
| CPU model | Intel Celeron J4125 |
|---|---|
| CPU quantity | 1 |
| CPU cores | 4 |
| CPU architecture | 64-bit |
| CPU frequency | 2.0 GHz base / 2.7 GHz turbo |
| Hardware encryption engine | Supported |
| System memory | 2 GB DDR4 non-ECC |
| Total memory slots | 1 |
| Maximum memory | 6 GB (2 GB + 4 GB) |
| Memory guidance | Use the Synology module listed for the exact model |
Storage and connectivity
| Drive bays | 4 |
|---|---|
| M.2 drive slots | 2 × NVMe |
| Drive categories | 3.5-inch SATA HDD; 2.5-inch SATA SSD; M.2 2280 NVMe SSD |
| Hot-swappable SATA bays | Supported |
| M.2 hot-swap | Not supported |
| RJ-45 1GbE ports | 2 |
| USB ports | 2 × USB 3.2 Gen 1 |
| M.2 storage pools | Supported with Synology-verified SSDs |
| Drive-bay expansion | Not specified |
| Drive compatibility | Confirm exact drives on Synology’s DS423+ compatibility list |
Physical design and power
| Size (H × W × D) | 166 × 199 × 223 mm |
|---|---|
| Weight | 2.18 kg |
| System fans | 92 × 92 mm × 2 |
| Fan modes | Full-speed, cool and quiet |
| Adjustable front LEDs | Supported |
| Power recovery | Supported |
| Noise level | 19.8 dB(A) |
| Scheduled power on/off | Supported |
| Wake on LAN/WAN | Supported |
| Power adapter | 90 W |
| AC input | 100 V to 240 V AC |
| Power consumption | 28.3 W access; 8.45 W HDD hibernation |
| Thermal output | 96.5 BTU/hr access; 28.81 BTU/hr HDD hibernation |
Environment, warranty and package
| Operating temperature | 0°C to 40°C |
|---|---|
| Storage temperature | -20°C to 60°C |
| Relative humidity | 5% to 95% RH |
| Certifications | FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS |
| Environment | RoHS compliant |
| Warranty | 3 years; extendable to 5 years with EW201 or Extended Warranty Plus, subject to regional availability |
| Package contents | Main unit × 1; accessory pack × 1; AC power adapter × 1; AC power cord × 1; RJ-45 LAN cable × 2; quick installation guide × 1 |
| Optional memory | D4NESO-2666-4G |
| Drive expansion | No expansion unit is specified for DS423+ |
Frequently asked questions about the Synology DS423+
What is the Synology DS423+?
The Synology DS423+ is a four-bay desktop NAS for centralised file storage, backup, private cloud, photo management and supported surveillance services.
Which processor is in the DS423+?
It uses the Intel Celeron J4125 with four cores and a 2.0 GHz base / 2.7 GHz turbo frequency.
How much memory does the DS423+ include?
It includes 2 GB DDR4 non-ECC memory and supports up to 6 GB in a 2 GB + 4 GB configuration.
How many drive bays does the DS423+ have?
The DS423+ has four hot-swappable SATA drive bays.
Which drives does the DS423+ support?
The verified categories are 3.5-inch SATA HDD, 2.5-inch SATA SSD and M.2 2280 NVMe SSD. Check exact models on the compatibility list.
Does the DS423+ support NVMe storage?
Yes. It has two M.2 NVMe slots and supports M.2 storage pools with Synology-verified SSDs.
Can the DS423+ expand beyond four drive bays?
No external drive-bay expansion is specified for the DS423+ in the current hardware specification.
What network ports are built into the DS423+?
It includes two 1GbE RJ-45 ports.
What are the DS423+ dimensions?
It measures 166 × 199 × 223 mm and weighs 2.18 kg.
What warranty applies to the DS423+?
Synology specifies a 3-year hardware warranty, extendable to 5 years with EW201 or Extended Warranty Plus where available.
- The DS423+ is supplied diskless unless the listing explicitly states otherwise; drives are sold separately.
- Confirm drives and memory on Synology’s exact DS423+ compatibility list.
- M.2 hot-swap is not supported and M.2 storage pools require Synology-verified SSDs.
- Actual usable capacity depends on installed drives, RAID or SHR configuration, and system-reserved space.
