Cooler Master MasterBox Q300L Micro-ATX Tower

Cooler Master ★ 4.2/5 · ItemOracle Score Mid-Range

$40 USD
Price subject to change
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Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow, Black (MCB-Q300L-KANN-S00)

Micro-ATX/Mini-ITX case with transparent side panel and adjustable I/O for versatile airflow. Notable for compact size and ease of build, with mixed feedback on airflow and cable management

Highlights

  • transparent side panel
  • supports 240mm cooling
  • maximum GPU and PSU compatibility

Pros

  • ample interior space for micro-ATX or mini-ITX
  • transparent acrylic side panel
  • adjustable I/O and fully vented design
  • supports 240mm liquid cooler and 5 fans
  • compact yet versatile for first builds

Cons

  • mixed reviews on airflow adequacy
  • mixed reviews on cable management

Best For

  • first-time build
  • compact desktop or office PC
  • budget airflow-focused build
  • GPU up to 360mm compatibility
  • CPU cooler up to 159mm height
  • PSU up to 160mm length

Features

  • Generous interior for Micro-ATX or Mini-ITX motherboards to support future expansion
  • CPU cooler height up to 159mm, GPU length up to 360mm, PSU up to 160mm
  • Supports 240mm liquid cooler and up to five fans for cooling options
  • Modular I/O panel can be positioned at front, top, or bottom on either side
  • Transparent acrylic side panel showcases the build

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