Synology DS425+
- CPU
- Intel Celeron J4125
- RAM
- 2 GB max 6 GB
- Network
- 1 × 2.5GbE, 1 × 1GbE
- M.2 / PCIe
- 2 / –
Model DS425+
Is the Synology DS425+ the right NAS?
Run SHR across the 4 bays and 75% of the raw space is yours to fill. Inside is an Intel Celeron J4125. It's x86, and Docker's happy.
Watch out for
No 10GbE, and Synology doesn't list a PCIe slot to add it. The 6 GB RAM ceiling is tight. Keep it to file sharing and a few light containers.
The two M.2 slots take NVMe drives for a cache or a small fast pool.
Usable space with 4 matching drives
These are decimal TB, the way drive boxes count them, and Windows will show roughly 9% less. Got a mix of sizes? Put your own drives in the calculator and it'll work out the layers.
| Each drive | SHR (1 parity) | SHR-2 (2 parity) |
|---|---|---|
| 4 TB × 4 | 12 TB ≈ 10.9 TiB | 8 TB ≈ 7.3 TiB |
| 8 TB × 4 | 24 TB ≈ 21.8 TiB | 16 TB ≈ 14.6 TiB |
| 12 TB × 4 | 36 TB ≈ 32.7 TiB | 24 TB ≈ 21.8 TiB |
| 16 TB × 4 | 48 TB ≈ 43.7 TiB | 32 TB ≈ 29.1 TiB |
| 20 TB × 4 | 60 TB ≈ 54.6 TiB | 40 TB ≈ 36.4 TiB |
| 24 TB × 4 | 72 TB ≈ 65.5 TiB | 48 TB ≈ 43.7 TiB |
Specifications
Taken from Synology's own spec page, and "Not published" means they don't list it.
| Drive bays | 4 bays | source for Drive bays (synology.com, opens in new tab) |
|---|---|---|
| CPU | Intel Celeron J4125 | source for CPU (synology.com, opens in new tab) |
| CPU cores | 4 cores | source for CPU cores (synology.com, opens in new tab) |
| CPU architecture | x86-64 | source for CPU architecture (synology.com, opens in new tab) |
| Installed RAM | 2 GB | source for Installed RAM (synology.com, opens in new tab) |
| Maximum RAM | 6 GB | source for Maximum RAM (synology.com, opens in new tab) |
| ECC RAM | No | source for ECC RAM (synology.com, opens in new tab) |
| 1GbE ports | 1 ports | source for 1GbE ports (synology.com, opens in new tab) |
| 2.5GbE ports | 1 ports | source for 2.5GbE ports (synology.com, opens in new tab) |
| 10GbE ports | 0 ports | source for 10GbE ports (synology.com, opens in new tab) |
| M.2 NVMe slots | 2 slots | source for M.2 NVMe slots (synology.com, opens in new tab) |
| PCIe slots | Not published | |
| Warranty | 3 years | source for Warranty (synology.com, opens in new tab) |
Sources: synology.com
Synology DS425+4-bay NAS