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be quiet! Pure Base 501

be quiet!beginnercritical fields covered· 5/5 detail specs sourced
be quiet! Pure Base 501

A beginner-tier ATX case from be quiet! with broad form-factor support (ATX/mATX/ITX), 368mm GPU clearance and 178mm cooler height, this closed-panel Pure Base 501 favors quiet over raw airflow versus its Airflow sibling. Front radiator support runs to 360mm. Good for budget builders wanting a quiet-leaning chassis; skip it if you're planning a top-mounted 360mm AIO, since the top caps at 240mm.

Scores

Breakdown
Overall63±3

Caliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions.

Beginner Friendliness84
Compatibility60
Confidence82
Pro Readiness42
Upgrade Path59
Value54

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
form factor supportATX, Micro-ATX, itxSourced
max GPU length (mm)368Sourced
max cooler height (mm)178Sourced
radiator supportfront 120-360mm / top 120-240mm / rear 120-140mmSourced
radiator support (mm)120, 240, 280, 360Sourced

5/5 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.

Verdict

Best for

  • Quiet-leaning budget ATX with two Pure Wings 3 140mm PWM fans (closed-panel design vs the Airflow variant)

Who should skip this

  • Top-mounted 360mm AIOs (top caps at 240mm)

Where to buy

List price $110

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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Standards

Form factors & standards — interchangeable across compatible builds, not a platform lock-in.

ATX (native)

Compatibility

Built around ATX. Make sure the rest of your build uses the same platform before you buy — mismatched sockets, mounts or standards are the most common return reason. Check it in the builder →

Upgrade path

Outgrow it and the Lian Li Lancool III RGB is the natural next step up in cases. See it →