Network-attached storage for small offices and home users, built for reliable multi-bay storage and quicker local transfers. Synology DS425+ NAS includes a three-year warranty and upgradeable memory, delivering reassurance for growing setups. Will the upgrade potential and dual-network ports be worthwhile for your environment?
⚡ At a Glance
- • Storage Performance: Intel Celeron J4125 and dual-network ports balance steady throughput with energy efficiency
- • Best for: Home offices and small businesses needing reliable multi-bay storage and media streaming
- • Not ideal for: Large-scale enterprise deployments that require ECC memory or advanced clustering features
Four-bay NAS with Intel Celeron J4125, 2 GB DDR4 (upgradeable to 6 GB) and two M.2 2280 NVMe slots. Includes 1 × 2.5 GbE and 1 × 1 GbE RJ-45 LAN ports plus a three-year warranty.
Consistent multitasking - thanks to Intel Celeron J4125 quad-core processor
Quad-core architecture handles concurrent services such as file sharing, backups and light virtualisation tasks without frequent CPU contention. The processor is designed for NAS workloads where multiple users access files simultaneously.
Smooth performance during simultaneous backups and media streaming keeps small teams productive without noticeable slowdowns.
Quicker local transfers - with a built-in 2.5 GbE network port
A 2.5 GbE RJ-45 port supports higher throughput than a standard 1 GbE connection, reducing network bottlenecks for large file moves. Paired with an additional 1 GbE port, the setup can support diverse network topologies.
Large backups and media libraries copy faster across the local network, shortening maintenance windows and improving user experience.
Faster access to frequent files - thanks to two M.2 2280 NVMe slots and upgradeable RAM
Two M.2 NVMe slots can be configured for cache acceleration or added storage pool capacity, improving random read/write performance. The 2 GB DDR4 SODIMM can be expanded to 6 GB with an additional module for better multitasking.
Frequently accessed data loads quicker and responsiveness improves when multiple users query the NAS, especially after adding NVMe cache and extra memory.
✨ The 4 Key Reasons for Synology DS425+ NAS
- Easy Migration - Seamless transfer path from older Synology models reduces setup time
- Official Drive Support - Synology-branded drives available for guaranteed compatibility
- Three-Year Warranty - Extended coverage for hardware issues during early ownership
- Compact Footprint - Small enclosure fits neatly into home offices and small IT racks
📋 Technical Details at a Glance
- Model: DS425+
- Brand: Synology
- Processor: Intel Celeron J4125 quad-core
- RAM: 2 GB DDR4 non-ECC SODIMM, upgradeable to 6 GB
- Supported Memory Module: D4NS01-4G
❓ Frequently Asked Questions
Q: Can the memory be upgraded?
A: Yes, the unit ships with 2 GB DDR4 non-ECC SODIMM and can be upgraded to 6 GB by adding an additional 4 GB module, compatible with module D4NS01-4G.
Q: Does it support NVMe for caching?
A: Yes, two M.2 2280 NVMe slots are available and can be used for caching or for creating storage pools.
Q: What network ports are included?
A: One 2.5 GbE RJ-45 port and one 1 GbE RJ-45 port are included for local networking and improved transfer speeds.
🏆 Our Verdict
The Synology DS425+ NAS suits home offices and small businesses that need reliable four-bay storage with upgrade potential. Onboard features such as the Intel Celeron J4125, two NVMe slots and a 2.5 GbE port make it a flexible choice for faster local transfers and responsive multi-user access. With a three-year warranty and clear upgrade path, the unit represents sensible long-term value for growing storage needs.
