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Cooler Master MasterBox Q300L Micro-ATX PC Case – Compact mATX Computer Case with Magnetic Dust Filters, Modular Adjustable I/O Panel, Perforated Airflow Design, 1 x 120mm Pre-Installed Fan, Black
Cooler Master MasterBox Q300L Micro-ATX PC Case – Compact mATX Computer Case with Magnetic Dust Filters, Modular Adjustable I/O Panel, Perforated Airflow Design, 1 x 120mm Pre-Installed Fan, Black - Image 3
Cooler Master MasterBox Q300L Micro-ATX PC Case – Compact mATX Computer Case with Magnetic Dust Filters, Modular Adjustable I/O Panel, Perforated Airflow Design, 1 x 120mm Pre-Installed Fan, Black - Image 4
Cooler Master MasterBox Q300L Micro-ATX PC Case – Compact mATX Computer Case with Magnetic Dust Filters, Modular Adjustable I/O Panel, Perforated Airflow Design, 1 x 120mm Pre-Installed Fan, Black - Image 5
Cooler Master MasterBox Q300L Micro-ATX PC Case – Compact mATX Computer Case with Magnetic Dust Filters, Modular Adjustable I/O Panel, Perforated Airflow Design, 1 x 120mm Pre-Installed Fan, Black - Image 6
Cooler Master MasterBox Q300L Micro-ATX PC Case – Compact mATX Computer Case with Magnetic Dust Filters, Modular Adjustable I/O Panel, Perforated Airflow Design, 1 x 120mm Pre-Installed Fan, Black - Image 7

Cooler Master MasterBox Q300L Micro-ATX PC Case – Compact mATX Computer Case with Magnetic Dust Filters, Modular Adjustable I/O Panel, Perforated Airflow Design, 1 x 120mm Pre-Installed Fan, Black

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Original price was: $44.99.Current price is: $39.99.

Ample Interior: Explore ample interior space for Micro-ATX or Mini-ITX motherboards, ensuring easy and future expansion
Components Clearance: Accommodates CPU coolers with a max height of 159mm, GPU cards up to 360mm, and PSU up to 160mm in length.
Versatile Cooling: Maximize cooling performance with a 240mm liquid cooler and 5 fans.

Why we picked this

Ample Interior Space
Supports Micro-ATX and Mini-ITX motherboards for easy upgrades.
Versatile Cooling Options
Compatible with 240mm liquid coolers and multiple fans for optimal airflow.
Modular I/O Panel
Adjustable I/O panel allows customization for your setup needs.

Original price was: $44.99.Current price is: $39.99.

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TechSteal Smart FAQ

What motherboard sizes are compatible with the Cooler Master MasterBox Q300L?
The Cooler Master MasterBox Q300L supports Micro-ATX and Mini-ITX motherboards.
What is the maximum CPU cooler height that the case can accommodate?
The case can accommodate CPU coolers with a maximum height of 159mm.
How long of a GPU can fit in the MasterBox Q300L?
The MasterBox Q300L can fit GPU cards up to 360mm in length.
What is the maximum PSU length that the case supports?
The case supports power supply units (PSUs) up to 160mm in length.
How many fans can be installed in the Cooler Master MasterBox Q300L?
The case can support a maximum of 5 fans and comes with 1 x 120mm fan pre-installed.
Can the I/O panel be adjusted in the MasterBox Q300L?
Yes, the I/O panel can be adjusted to six different locations, with three options on each side of the case.
AI-generated from available product information. Always verify details on the official listing.
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Product Details

The Cooler Master MasterBox Q300L Micro-ATX PC Case offers a compact design without sacrificing functionality. Its ample interior space accommodates Micro-ATX and Mini-ITX motherboards, making future upgrades easy. The case supports a maximum CPU cooler height of 159mm and GPU cards up to 360mm, ensuring compatibility with a variety of components.

Additionally, the modular adjustable I/O panel allows for customization based on your setup preferences, with options on both sides of the case. The perforated airflow design enhances cooling performance, and the included magnetic dust filters help maintain cleanliness.

  • Compact design for space-saving setups
  • Supports standard ATX PSU
  • Versatile cooling options with up to 5 fans
  • Unique customizable outlook

Pros & Cons

Pros
  • Compact and space-saving design
  • Ample interior for future upgrades
  • Modular I/O panel for customization
  • Effective cooling with multiple fan options
Cons
  • Limited to Micro-ATX and Mini-ITX motherboards
  • Max GPU length may restrict some high-end cards
  • Only one pre-installed fan included
Cooler Master MasterBox Q300L Micro-ATX PC Case – Compact mATX Computer Case with Magnetic Dust Filters, Modular Adjustable I/O Panel, Perforated Airflow Design, 1 x 120mm Pre-Installed Fan, Black
Cooler Master MasterBox Q300L Micro-ATX PC Case – Compact mATX Computer Case with Magnetic Dust Filters, Modular Adjustable I/O Panel, Perforated Airflow Design, 1 x 120mm Pre-Installed Fan, Black

Original price was: $44.99.Current price is: $39.99.

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Most of the deals featured here come from trusted retailers like Amazon, with new bargains added regularly. We focus on highlighting products that offer strong value, reliable quality, and real savings.

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Disclosure: We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

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