Buyer rule
Start with GPU dimensions, airflow, connector room, and service access
Choose by ITX motherboard support, GPU dimensions, SFX or SFX-L PSU support, cooler height, riser cable path, fan mounts, and side-panel clearance.

Mini-ITX case prices
Mini-ITX cases can support strong GPUs, but only when the exact card, PSU, cooler, fans, and cable path fit the chassis.
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Buyer rule
Choose by ITX motherboard support, GPU dimensions, SFX or SFX-L PSU support, cooler height, riser cable path, fan mounts, and side-panel clearance.
Risk
The common mistake is assuming mini-ITX means simple when the build actually needs more fit checks than a mid-tower.
Amazon case lanes
Use these lanes after GPU length, slot thickness, side-panel clearance, power-cable bend room, intake path, fan mounts, PSU space, and service access are specific. Amazon has the current listing details, seller terms, shipping, returns, and exact product specifications.
Core lane for compact GPU builds with ITX motherboards.
Living-room lane for narrow cases that need careful GPU and riser matching.
Power lane for cases built around compact power supplies.
Cooling lane for compact cases with more open intake paths.
Fit lane for ITX builds where cooler height competes with case panels.
Cooling accessory lane for tight fan mounts and GPU-adjacent airflow.