Asustor Flashstor 12 Pro
NAS · $1099
Synology DS923+
4-bay · Ryzen R1600 · DSM 7.2
Synology DS923+ takes it — here’s why.
In our weighted Specdex score, Asustor Flashstor 12 Pro lands at 88 and Synology DS923+ at 90. That puts Synology DS923+ ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Asustor Flashstor 12 Pro if…
- ✓Rich software ecosystem (Synology/QNAP)
- ✓NVMe cache slots on newer models
- ✓Docker/VM support on higher tiers
Pick Synology DS923+ if…
- ✓Best NAS OS in DSM
- ✓NVMe cache slots
- ✓Expansion to 9 bays
Winner by scenario
Derived from the sub-score breakdown · not a separate testFeatures
Synology DS923+Compared on the features sub-score
Synology DS923+ leads on features (96 vs 88).
Software
Synology DS923+Compared on the software sub-score
Synology DS923+ leads on software (98 vs 86).
Performance
Asustor Flashstor 12 ProCompared on the performance sub-score
Asustor Flashstor 12 Pro leads on performance (88 vs 86).
Value for money
Synology DS923+Specdex score per dollar at MSRP
Synology DS923+ more score per dollar ($599 vs $1,099).
Score breakdown
Specs side-by-side
| Spec | Asustor Flashstor 12 Pro | Synology DS923+ |
|---|---|---|
| Bays | — | 4 |
| CPU | — | AMD Ryzen R1600 |
| RAM | — | 4 GB ECC (up to 32) |
| Ports | — | 2× GbE (10 GbE optional) |
Asustor Flashstor 12 Pro
- +Rich software ecosystem (Synology/QNAP)
- +NVMe cache slots on newer models
- +Docker/VM support on higher tiers
- −Disks rarely included
- −Drive compatibility restrictions on some brands
- −Power draw 24/7
Synology DS923+
- +Best NAS OS in DSM
- +NVMe cache slots
- +Expansion to 9 bays
- −No hardware transcoding
- −Only 2.5 GbE optional upgrade
- −Expensive disks-not-included
FAQ: Asustor Flashstor 12 Pro vs Synology DS923+
Which is better, Asustor Flashstor 12 Pro or Synology DS923+? +
Synology DS923+ scores 90 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.
Is Asustor Flashstor 12 Pro worth the price? +
At $1,099, Asustor Flashstor 12 Pro delivers a Specdex score of 88 — strongest in performance.
Is Synology DS923+ worth the price? +
At $599, Synology DS923+ delivers a Specdex score of 90 — strongest in software.
Does Asustor Flashstor 12 Pro or Synology DS923+ 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.
Which is better for features, Asustor Flashstor 12 Pro or Synology DS923+? +
Synology DS923+ — leads on features (96 vs 88). Compared on the features sub-score.
Which is better for software, Asustor Flashstor 12 Pro or Synology DS923+? +
Synology DS923+ — leads on software (98 vs 86). Compared on the software sub-score.