Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter & Thermaltake Smart 600W ATX 12V V2.3/EPS 12V 80 Plus Certified Active PFC Power Supply PS-SPD-0600NPCWUS-W

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💡 How to pick a case
What to look for:
  • Matches your motherboard form factor
  • GPU clearance length for your graphics card
  • CPU cooler height clearance
💰 Airflow matters more than looks. Look for mesh front panels and 3+ included fans
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ProductForm FactorTowerSide PanelMax GPU LengthFans IncludedValuePrice
Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter & Thermaltake Smart 600W ATX 12V V2.3/EPS 12V 80 Plus Certified Active PFC Power Supply PS-SPD-0600NPCWUS-W Case
Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter & Thermaltake Smart 600W ATX 12V V2.3/EPS 12V 80 Plus Certified Active PFC Power Supply PS-SPD-0600NPCWUS-W
Thermaltake★★★★★4.9
$82.98
Specifications
addedAt2026-05-15T17:05:43.668Z
sourceamazon-discovery
Customer Reviews★★★★★4.5 · 2 reviews
★★★★★Good, big and heavy
Great. Psu came newly sealed and case looked repacked but good condition
Yean · 2025-05-29 · via amazon
★★★★Great Case
Bought this for a rebuild of my pc. I love the case. Not too big, not too small. Setting up with all my peripherals and my mother board was easy. Cable management can be a bit of an issue at first but once you figure it out, it is a dream. Love the look of the case too. Wish it was 270 degrees or had front glass as well. Also wish it had an option to put the usb ports on front, but the modular setup of the usb ports does make it a great case. As for the power supply included, I really didn't need it as I have a higher power modular psu, but I did test it and it was rock solid. What made it great was that I was able to sell the psu privately and almost make the case free. So if you want to get a good case and possibly need a better power supply, you can't beat this. But if you do not need the psu and can't find the case by itself...you can make your money back almost by selling the psu.
Frederick Iannone · 2024-09-20 · via amazon
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$82.98
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Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter & Thermaltake Smart 600W ATX 12V V2.3/EPS 12V 80 Plus Certified Active PFC Power Supply PS-SPD-0600NPCWUS-W Case