PC CASE · VERIFIED EXACT-MODEL PROFILE

Lian Li
A3-mATX — Black

26.3 L mATX/Mini-ITX chassis, four slots, up to 415 mm GPU and 165 mm cooler, radiators up to 360 mm and ATX/SFX/SFX-L/EDGE PSU support subject to layout interactions.

Reference: Verified exact modelFormat: micro-ATX / Mini-ITXDimensions: 443 × 194 × 321.5 mm (D × W × H, with feet)GPU clearance: Up to 415 mm; depends on PSU size and mounting positionCPU cooler clearance: Up to 165 mm; check side cooling clearanceRadiator support: Top / side: up to 360 mm, subject to PSU and GPU layoutPower supply: ATX / SFX / SFX-L; up to 220 mm, layout dependentVolume: 26.3 LSide panels: Black steel mesh; standard non-wood version
Lian Li A3-mATX — Black
MODEL PHOTOExact model shown
Best forA compact mATX/ITX build whose component layout is planned before purchase.
Main limitBuyers who expect maximum GPU, ATX PSU and large radiator dimensions to coexist automatically.
Check firstConfirm exact panel edition, PSU position and component layout; a radiator/fan combination can eliminate GPU space in some configurations.
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Last checkedCheckingPrice unconfirmed: check the retailer

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✓ Merchant links reviewed September 4, 2026

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VERIFIED MANUFACTURER SHEET

Exact-model facts and limits

Confirmed facts

26.3 L mATX/Mini-ITX chassis, four slots, up to 415 mm GPU and 165 mm cooler, radiators up to 360 mm and ATX/SFX/SFX-L/EDGE PSU support subject to layout interactions.

Compatibility to confirm

Confirm exact panel edition, PSU position and component layout; a radiator/fan combination can eliminate GPU space in some configurations.

Official manufacturer sourcesOfficial source 1 →Official source 2 →

FAQ

Questions before buying this model

Who is the Lian Li A3-mATX — Black best for?

A compact mATX/ITX build whose component layout is planned before purchase.

Who should compare another option?

Buyers who expect maximum GPU, ATX PSU and large radiator dimensions to coexist automatically.

What should you compare before choosing?

Use the manufacturer layout matrix for the exact PSU position, radiator and GPU thickness.

What must be verified before buying?

Confirm exact panel edition, PSU position and component layout; a radiator/fan combination can eliminate GPU space in some configurations.

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