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White mini-tower Micro-ATX case with perforated front panel

Cooler Master

Cooler Master MasterBox Q300L White Micro-ATX Mini Tower PC Case

SKU CH-F2SZ-XJEQP

White Micro-ATX mini tower case supporting compact PC builds with a clean, minimalist design

  • TypeMicro-ATX
  • ColorWhite
  • Mini tower form factor saves desk space
  • Micro-ATX support fits compact builds
  • White finish suits bright-themed setups
  • Manufacturer tested for 100% functionality
  • May show slight cosmetic signs of use

Compact Micro-ATX Case for Space-Conscious Builders

The Cooler Master MasterBox Q300L White is a mini-tower chassis designed for Micro-ATX motherboards. Its reduced footprint suits home offices, dorm rooms or any desk where a full tower would dominate. The clean white finish keeps the build looking bright and unobtrusive.

Replaces Bulkier Mid-Tower Chassis

Moving from a standard ATX case to this mini tower frees significant desk space and reduces carry weight for LAN events. The jump makes sense when your component list fits Micro-ATX and you no longer need the extra drive bays or expansion slots of a larger enclosure.

Straightforward Assembly

Tool-less side panels and a removable dust filter simplify the build process for first-timers. The compact interior can make routing the 24-pin ATX and front-panel cables tight, so plan the cable path before securing the motherboard. Builders who need multiple 3.5-inch drives or long graphics cards should verify clearances first.

Highlights

  • Mini tower form factor saves desk space
  • Micro-ATX support fits compact builds
  • White finish suits bright-themed setups
  • Manufacturer tested for 100% functionality
  • May show slight cosmetic signs of use

Specifications

BrandCooler Master
SeriesMasterBox Q300L
Part NumberMCB-Q300L-WANN-S00
TypeMicro-ATX
ColorWhite

Questions about this item

What motherboard form factor fits the MasterBox Q300L mini tower?

The case supports Micro-ATX boards, which match its listed form factor.

How is the MasterBox Q300L installed, and what step is often missed?

Mount the motherboard on the included standoffs, then secure the I/O shield before adding components; many forget the shield.

What maintenance will the white MasterBox Q300L need later?

Clean the magnetic dust filters on the top and front panels periodically to maintain airflow.

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