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be quiet! Silent Wings 4 140mm PWM high-speed

be quiet!enthusiastcritical fields covered· 3/3 detail specs sourced
be quiet! Silent Wings 4 140mm PWM high-speed

A premium single 140mm PWM fan, the high-speed Silent Wings 4 pairs 1900 RPM headroom with a low 29.3 dB(A) maximum — a strong choice where you want serious airflow without the noise penalty. Skip it for RGB builds (it has none) and for bulk case fills, where the per-fan cost stacks up against cheaper multi-packs like Arctic's five-packs.

Scores

Breakdown
Overall72±3

Caliber-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).

Beginner Friendliness75
Compatibility50
Confidence76
Pro Readiness56
Upgrade Path65
Value95

The ± band on the overall score reflects sourcing confidence — wider when fewer specs are verified.

How each score is computed: our scoring methodology.

Specifications

SpecValueVerification
size (mm)140Sourced
RGBnoSourced
pack count1Sourced

3/3 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.

Verdict

Best for

  • Premium quiet 140mm — 1900 RPM headroom at 29.3 dB(A) max

Who should skip this

  • RGB builds; bulk case fills (per-fan price adds up vs Arctic 5-packs)

Where to buy

List price $28

Prices are a guide and can change — confirm the current price on the retailer's site before buying.

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Prices last checked Jun 14, 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

Outgrow it and the Noctua NF-A12x25 G2 chromax.black is the natural next step up in case fans. See it →