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Synology 8 Bay NAS DiskStation ds1821 and TerraMaster F4-424 Pro are closely matched nas storage devices with nearly identical overall scores (53 vs 52). The best choice depends on which specific features matter most to you.
Scores are relative within the nas storagecategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✓ Pros
✓ Pros
✗ Cons
| Spec | Synology 8 Bay NAS DiskStation ds1821 | TerraMaster F4-424 Pro |
|---|---|---|
| Price | 399$✓ | 499$ |
| RAM | 4GB | 4GB |
| OS | DiskStation Manager (DSM) | TOS 5.0 |
| Weight | 1500g | 1100g✓ |
| Dimensions | 166 x 243.5 x 223.5 mm | 220 x 180 x 220 mm |
| Colors | Black | Black |
Buy Synology 8 Bay NAS DiskStation ds1821 if…
Choose the Synology 8 Bay NAS DiskStation ds1821 if budget is your top priority — it offers competitive specs at a lower price point.
Buy TerraMaster F4-424 Pro if…
The TerraMaster F4-424 Pro is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Synology 8 Bay NAS DiskStation ds1821 and TerraMaster F4-424 Pro are closely matched nas storage devices with nearly identical overall scores (53 vs 52). The best choice depends on which specific features matter most to you.
Both products score similarly — it depends on your priorities.
Synology 8 Bay NAS DiskStation ds1821 is cheaper at $399 vs $499 for the TerraMaster F4-424 Pro.
Choose the Synology 8 Bay NAS DiskStation ds1821 if budget is your top priority — it offers competitive specs at a lower price point.
The TerraMaster F4-424 Pro is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
TerraMaster F4-424 Pro is lighter at 1100g vs 1500g.
Reviewed by VersusMatrix Editorial Team
Last updated: April 25, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.
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