Cooler Master MasterBox Q300L Micro-ATX Computer Case Gray for Office and Home Usage
MasterBox Q300L (MCB-Q300L-KANN-S00)
Hero image 0 of MasterBox Q300L (MCB-Q300L-KANN-S00), 0 of 19
Cooler Master

MasterBox Q300L (MCB-Q300L-KANN-S00)

|19 ratings

Key item features

  • Compact Versatility: The MasterBox Q300L is a small-sized chassis from the MasterBox Q-series, designed for functionality and modularity without compromising thermal performance.
  • ATX Power Support: Despite its compact size, this case uniquely supports a standard ATX power supply unit, a feature not commonly found in similar-sized products.
  • Adjustable I/O: The I/O panel offers six different placement options, with three choices on each side of the case, allowing users to customize the setup to best suit their system.
  • Distinctive Aesthetics: Its cube design and special pattern on the magnetic dust filter give the chassis a unique and standout appearance.
  • Practical Application: The combination of a practical design and customizable outlook makes the MasterBox Q300L an ideal choice for both office and home environments.
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4.3 out of 5 stars
stars
19 ratings11 reviews
How item rating is calculated
  1. 5 stars68% (13)
  2. 4 stars11% (2)
  3. 3 stars5% (1)
  4. 2 stars11% (2)
  5. 1 star5% (1)
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Showing 1-3 of 11 reviews

Jan 4, 2026
Reviewer name: Kevin
Sold and shipped byNewegg Inc.
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Cooler Master Q300L

It's lowkey very good for budget wise especially if you tryna just build a budget or a secondary streaming pc most definitely I the filters are a cool design I recommend the q300 v2

Helpful?7FEE657LVFB6541482386
Mar 14, 2025
Reviewer name: WinnerWinner
Sold and shipped byNewegg Inc.
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

would recommend

fantastic for the price althought i had a chesp prebuilt computer that id been slowly upgrading it is still impressive to me that swapping everything to this case gave me a 20 degree drop in cpu temps

Helpful?7FEE657LVFB6541482386
Dec 12, 2024
Reviewer name: David
Sold and shipped byNewegg Inc.
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good case

Perfect little case, remove dust filters for better temps.

Incentivized Review
Helpful?7FEE657LVFB6541482386
Current price is Now $39.99
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was $44.99
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