Cooler Master MasterBox Q300L
Category: Case
Manufacturer: Cooler Master
Form Factor: Mini-ITX
Max GPU: 400mm
Side Panel: Acrylic
Price: $39.99 from Newegg
Cooler Master MasterBox Q300L
Form Factor
Mini-ITX
Max GPU
400mm
Side Panel
Acrylic
Best price from Newegg
$39.99
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Overview
The Cooler Master MasterBox Q300L is a MicroATX Mini Tower with support for Mini-ITX motherboards. GPU clearance reaches 400mm — room for full triple-fan flagship cards — with 170mm of air-cooler headroom. A acrylic side panel shows off the build. It comes with 2 fans pre-installed and mounts up to 6.
In the budget bracket, prioritize GPU and cooler clearance — small cases punish part-picking mistakes. At $39.99 it sits in the budget PC case bracket. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Cooler Master backs the product through its standard warranty channels; check the listing for region-specific terms.
| Specification | Value |
|---|---|
| Fans | included: 2, maxTotal: 6 |
| Type | MicroATX Mini Tower |
| Drive Bays | 2.5: 2, 3.5: 1 |
| Side Panel | Acrylic |
| Form Factor | Mini-ITX |
| Max GPU Length | 400 mm |
| Max Cooler Height | 170 mm |
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