
Cooler Master MCB-B400L-KGNN-S00 MasterBox MB400L Mini Tower Case
Compact and Stylish Case for Your Next Build The Cooler Master MasterBox MB400L is a mini tower case designed for compact and stylish builds. Featuring a brushed front panel, versatile cooling options, and support for various motherboard sizes, this case provides a sleek and functional solution ...
*Price sourced from Amazon.com. Last updated:Aug 29, 2026.Price and availability are subject to change — details.
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Overview
Compact and Stylish Case for Your Next Build
The Cooler Master MasterBox MB400L is a mini tower case designed for compact and stylish builds. Featuring a brushed front panel, versatile cooling options, and support for various motherboard sizes, this case provides a sleek and functional solution for your next PC build.
Specifications:
- Front Panel: Brushed finish
- Cooling Support: Up to six fans, front, top, and rear radiator support
- Motherboard Compatibility: Mini ITX, Micro ATX
- Air Inputs: Large mesh inputs on the front panel
Key Features
BRUSH FRONT PANEL: A brushed finish covers the entire front panel for a sleek, minimalist design.
HEXADON GLEAM: If an optional illuminated fan is installed, the Cooler Master hexagonal logo captures the fan light and emits a glow on the front panel.
AIR INPUTS: Large mesh inputs cover each side of the front panel to provide additional air flow to the system.
VERSATIVE COOLING OPTIONS: The support for up to six fans and the front, top and rear radiator support ensure performance is not compromised.
COMPATIBILITY WITH PLATES - MOM: Mini ITX, Micro ATX.