Synology DiskStation DS925+ (4-bay, diskless)

A four-bay diskless NAS in the 2.5GbE class with DSM's polished software, a capable pro-tier choice for project archives and media serving. The extra bays and DSM features suit creators consolidating larger libraries. Weigh Synology's drive-compatibility policies first, they've softened but still constrain drive-brand freedom.
Scores
BreakdownHideOverall75±3Caliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions; excluded here: compatibility (no ecosystem dimension).
Scores
BreakdownHideCaliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions; excluded here: compatibility (no ecosystem dimension).
The ± band on the overall score reflects sourcing confidence — wider when fewer specs are verified.
How each score is computed: our scoring methodology.
Specifications
| Spec | Value | Verification |
|---|---|---|
| device type | nasSourced | Sourced |
| speed | 2.5GbE classSourced | Sourced |
2/2 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.
Verdict
Best for
- Project archives / media serving with DSM polish (diskless)
Who should skip this
- Drive-brand freedom (Synology drive-compatibility policies — softened but real)
Where to buy
List price $640
Prices are a guide and can change — confirm the current price on the retailer's site before buying.
Prices last checked Jun 13, 2026 — retailer prices change often, so click through for the current price.
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Compatibility
No platform-specific compatibility requirements — this works in any standard pc builds setup.
Upgrade path
A top-tier networking & na — there's little to upgrade to within the category.