Description
Synology DS423 is a compact and powerful 4‑bay NAS designed for home users and small businesses looking to centralise data, back up critical files, and build a private cloud – all while keeping control in your hands. Powered by Synology’s intuitive DiskStation Manager (DSM), the DS423 supports Btrfs snapshot protection, hybrid cloud sync, video surveillance, and seamless file sharing across devices.
With up to 72 TB of raw capacity, built-in Btrfs file system for advanced data integrity, and dual 1GbE LAN ports with Link Aggregation support, the DS423 delivers reliable and scalable storage. Whether you’re protecting family memories or backing up business-critical data, this NAS gives you peace of mind with simple setup, efficient performance, and minimal maintenance.
Key Features
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4‑Bay Design (Up to 72 TB Raw Capacity)
Supports 3.5”/2.5” SATA HDDs and SSDs with hot-swap bays for flexible storage expansion.
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Advanced File System with Snapshots
Btrfs technology ensures data integrity, enables scheduled snapshots, and offers self-healing file capabilities.
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Powered by Synology DSM OS
Built-in apps for backup, file sharing, media streaming, surveillance, and hybrid cloud via Synology Drive, Photos, Hyper Backup, and Surveillance Station.
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Dual Gigabit Ethernet Ports
With Link Aggregation and failover support, ensuring network redundancy and better bandwidth handling.
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M.2 NVMe SSD Cache Slots
Two built-in M.2 2280 slots to accelerate read/write speeds using SSD caching (SSD sold separately).
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Mobile Backup & Cloud Sync
Automatically back up phones and sync with Google Drive, Dropbox, OneDrive, and Synology C2.
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Surveillance Station
Manage up to 30 IP cameras with smart analytics and remote viewing, ideal for home or small office security.
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Energy Efficient & Quiet
Runs at ~17.6 dBA and consumes only 8.5W during HDD hibernation – ideal for desktop environments.
Technical Specifications
| Synology DiskStation DS423 - Technical Specifications |
| Model |
DS423 (Diskless) |
| CPU |
Realtek RTD1619B (Quad-Core 1.7GHz, 64-bit) |
| System Memory |
2GB DDR4 non-ECC (non-expandable) |
| Drive Bays |
4 x SATA 3.5"/2.5" HDD/SSD bays (hot-swappable) |
| M.2 SSD Slots |
2 x M.2 2280 NVMe (for SSD cache only) |
| Maximum Raw Capacity |
72TB (18TB x 4 drives) |
| RAID Support |
Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0/1/5/6/10 |
| LAN Ports |
2 x Gigabit RJ-45 (supporting Link Aggregation/Failover) |
| USB Ports |
2 x USB 3.2 Gen 1 (5Gbps) |
| Cooling |
2 x 92mm fans (automatic/manual modes) |
| Noise Level |
17.6 dBA (typical) |
| Power Consumption |
8.5W (HDD hibernation), 21.6W (access) |
| Dimensions (HxWxD) |
166 mm x 199 mm x 223 mm |
| Weight |
2.18 kg (without drives) |
| Surveillance Support |
Up to 30 IP cameras (2 free licenses included) |
| Warranty |
3 Years (extendable via Synology Extended Warranty Plus) |
Pros & Cons
Pros:
- Robust private‑cloud solution with license‑free backup and snapshot protection
- Flexible surveillance support for up to 30 IP cameras
- NVMe caching, RAID support, Synology’s DSM software suite
- Low noise, low power, compact 4‑bay design
Cons:
- Only 1 GbE Ethernet (no built‑in 2.5 GbE or PCIe expansion)
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2 GB memory is not user‑upgradeable (soldered); only single DIMM slot expands to 6 GB total
- CPU (Celeron J4125) is dated vs newer models, limiting heavy-compute tasks like AVX‑dependent Docker apps
More Information
DS423 Datasheet
DS423 Diskstation Product Specificaitons
DS423 Diskstation Product Manaul
Synology NAS User's Guide for DSM 7.2
