Synology
Synology DS1825+
8-bay · Ryzen V1500B · DSM 7.2
91
/ 100
From $1,099
VS
Synology DS1825+ wins by 2
Asustor
Asustor Flashstor 12 Pro Gen2
All-flash · 12× M.2 NVMe · 10 GbE
89
/ 100
From $1,599
Specdex verdict
Synology DS1825+ takes it — here’s why.
In our weighted Specdex score, Synology DS1825+ lands at 91 and Asustor Flashstor 12 Pro Gen2 at 89. That puts Synology DS1825+ ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Synology DS1825+ if…
- ✓8 bays with DSM polish
- ✓NVMe cache slots
- ✓Great backup ecosystem
Pick Asustor Flashstor 12 Pro Gen2 if…
- ✓12× M.2 NVMe slots
- ✓10 GbE built-in
- ✓Silent — no spinning drives
Synology DS1825+ 91
vs 89 Asustor Flashstor 12 Pro Gen2
Score breakdown
Synology DS1825+
91 performance 86
features 94
software 98
value 84
hardware 0
ease 0
Asustor Flashstor 12 Pro Gen2
89 performance 0
features 0
software 80
value 86
hardware 96
ease 84
Specs side-by-side
| Spec | Synology DS1825+ | Asustor Flashstor 12 Pro Gen2 |
|---|---|---|
| Bays | 8 | 12× M.2 NVMe Gen 4 |
| CPU | AMD Ryzen V1500B | ▲ Intel Atom x7835RE (8 cores) |
| RAM | 8 GB ECC (32 GB max) | ▲ 16 GB DDR5 (expandable to 64) |
| Ports | 4× GbE + optional 10 GbE | — |
| Network | — | 10 GbE × 1 + 2.5 GbE × 2 |
| USB | — | 4× USB 3.2 Gen 2 |
Synology DS1825+
Pros
- +8 bays with DSM polish
- +NVMe cache slots
- +Great backup ecosystem
Cons
- −No 10 GbE built-in
- −Synology-only drive restrictions on some models
- −Premium price
Asustor Flashstor 12 Pro Gen2
Pros
- +12× M.2 NVMe slots
- +10 GbE built-in
- +Silent — no spinning drives
Cons
- −NVMe TB-per-dollar still pricey
- −Heat management critical
- −ADM software trails DSM polish
FAQ: Synology DS1825+ vs Asustor Flashstor 12 Pro Gen2
Which is better, Synology DS1825+ or Asustor Flashstor 12 Pro Gen2? +
Synology DS1825+ scores 91 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.
Is Synology DS1825+ worth the price? +
At $1,099, Synology DS1825+ delivers a Specdex score of 91 — strongest in software.
Is Asustor Flashstor 12 Pro Gen2 worth the price? +
At $1,599, Asustor Flashstor 12 Pro Gen2 delivers a Specdex score of 89 — strongest in hardware.
Does Synology DS1825+ or Asustor Flashstor 12 Pro Gen2 last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.