Cooler Master MasterBox MB400L
Category: Case
Manufacturer: Cooler Master
Form Factor: Mini-ITX
Max GPU: 400mm
Side Panel: None
Price: $82.85 from Amazon
Cooler Master MasterBox MB400L
Form Factor
Mini-ITX
Max GPU
400mm
Side Panel
None
Best price from Amazon
$82.85
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Overview
The Cooler Master MasterBox MB400L is a MicroATX Mini Tower with support for Mini-ITX motherboards. GPU clearance tops out at 400mm — room for full triple-fan flagship cards — with 170mm of air-cooler headroom. It comes with 2 fans pre-installed and mounts up to 6. In the mid-range bracket, prioritize GPU and cooler clearance — small cases punish part-picking mistakes.
At $82.85 it sits in the mid-range PC case bracket. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Warranty coverage follows Cooler Master's standard policy — confirm regional terms on the listing.
| Specification | Value |
|---|---|
| Fans | included: 2, maxTotal: 6 |
| Type | MicroATX Mini Tower |
| Drive Bays | 2.5: 2, 3.5: 2 |
| Side Panel | None |
| Form Factor | Mini-ITX |
| Max GPU Length | 400 mm |
| Max Cooler Height | 170 mm |
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