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SetupGearGuide

Lian Li A3-mATX

Lian LibeginnerBest Valuecritical fields covered· 5/5 detail specs sourced
Lian Li A3-mATX

The A3-mATX is a 26.3L compact case that punches above its volume, fitting a 360mm AIO and up to a 415mm GPU while supporting mATX and ITX boards — a strong value pick for a small but capable build. Know its limits, though: it won't take full ATX boards, and it ships without fans, so budget for those separately.

Scores

Breakdown
Overall68±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 Friendliness95
Compatibility72
Confidence82
Pro Readiness31
Upgrade Path63
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
form factor supportMicro-ATX, itxSourced
max GPU length (mm)415Sourced
max cooler height (mm)165Sourced
radiator support360mmSourced
radiator support (mm)240, 280, 360Sourced

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

Verdict

Best for

  • 26.3L compact that still fits 360mm AIO + 415mm GPU

Who should skip this

  • Full ATX boards; builders wanting included fans

Where to buy

List price $68

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 16, 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.

Mini-ITX (native)Micro-ATX (native)

Compatibility

Built around Mini-ITX, Micro-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 Fractal Design North is the natural next step up in cases. See it →