Cooler Master MasterBox MB520 Mesh ARGB (ATX) Mid Tower Cabinet (Black)

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SKU: MB520-KGNN-S00 Category:


FineMesh Performance Front Panel – Large mesh intakes offer unrestricted airflow and stellar thermals for demanding systems.

Three CF120 ARGB Fans Included – Pre-installed CF120 ARGB fans provide ample airflow, ensuring low temperatures, high performance, and eye-catching aesthetics during even the most intense gaming sessions. The included ARGB controller allows users to manage systems lighting independently from the hardware configuration if needed.

Removable Top Panel – The top panel is entirely removable for improved access to the components during assembly. Ease of use also facilitates the mounting of cooling solutions such as fans and radiators.

Screwless & Tool-Free TG Side Panel – The tempered glass side panel is secured with pins for easy removal, facilitating quick access to the internals without the use of tools. An optional screw can be installed to further secure the tempered glass side panel.

Versatile Cooling Options – Support for up to seven 120mm fans and dual 360mm radiators on the top and front panel ensure high compatibility for liquid-cooled systems.

Removable HDD cage – The HDD cage is completely removable for improved access during assembly and system upgrades.

Upgraded Removable Dust Filter Bracket – The bottom dust filter bracket is robust and locked sturdily in place during travel, remaining easy to remove for cleaning purposes.


Product Number MB520-KGNN-S00
Exterior Color Black
  • Exterior-Mesh, Steel, ABS Plastic, Tempered Glass
  • Left Side Panel-Tempered Glass
(L x W x H)
  •  incl. Protrusions-502x 210 x 498mm
  • Body size-443x 210 x 498mm
Volume 50L
Motherboard Support Mini-ITX, Micro-ATX, ATX, SSI-CEB, E-ATX*
(*up to 12” x 10.7” motherboards, may impact cable management feature)
Expansion Slots 7
Drive Bays
  • 5.25“ ODD-0
  • 3.5” HDD-2
  • 2.5” SSD-3
I/O Panel
  • USB Ports-1 x USB 3.2 Gen1 Type-A + 1x USB 3.2 Gen2 Type-C
  • Audio In / Out-1x 3.5mm Headset Jack (Audio + Mic)
  • Others-1x RESET/ARGB button
Included Accessories ARGB Fans Hub
Included Fan(s)
  • Top-N/A
  • Front-3 x CF120 ARGB
  • Rear-N/A
Fan Support
  • Top-3 x 120mm / 2 x 140mm
  • Front-3 x 120mm / 2 x 140mm
  • Rear-1 x 120mm
Radiator Support
  • Top-120/140/240/280/360mm
    (recommended maximum thickness – 55mm)
  • Front-120/140/240/280/360mm
  • Rear-120mm
  • CPU Cooler-165mm / 6.49”
  • Power Supply-200mm
    (Recommended up to 170mm)
  • Graphics Card-410mm / 16.10”
Dust Filters Bottom, Front, Top
Power Supply Support ATX
Warranty 2 Years
Note *** Features, Price, Specifications are subject to change without notice.
Average Rating


( 8 Reviews )
5 Star
4 Star
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Only logged in customers who have purchased this product may leave a review.

8 Reviews For This Product

  1. 08

    by Ajay K (Verified Buyer ✅)

    Been using a lot of items, this one is obviously the best

  2. 08

    by Samir Phukan (Verified Buyer ✅)

    Hope to see your improvement over time

  3. 08

    by Soham Ghosh (Verified Buyer ✅)

    Good response from the support.

  4. 08

    by Girish Ks (Verified Buyer ✅)

    The first time I got the urges to leave a comment, but this is simply a top-notch thing you can find.

  5. 08

    by Jeevitha R (Verified Buyer ✅)

    I think this is amazing. Lots of features and customizable from every point of view. The few times I asked for help in support they were competent, fast and above all very patient. Really recommend

  6. 08

    by Sahoo S (Verified Buyer ✅)

    Not the best thing, but worth the money

  7. 08

    by Nadhini R (Verified Buyer ✅)

    I got excellent support for this item. They were patient with me, and helped me solve my issue. I recommend this company 100%

  8. 08

    by Subhash K (Verified Buyer ✅)

    I’ll give a 3-star rating for the support


Please refer to the recommended PSU table as below. It indicates clearly on the power by GPUs and corresponding CPUs. We hope this information helps you choose the right power supply units based on your components.

NVIDIA GPU 4000 Series

GPU Intel i5 / Ryzen 5 Intel i7 / Ryzen7 Intel i9 / Ryzen9
RTX 4090 850W 1000W 1000W
RTX 4080 16G 750W 750W 850W
RTX 4070 Ti 650W 750W 750W
RTX 4070 550W 650W 650W
RTX 4060 Ti 550W 550W 650W
RTX 4060 550W 550W 550W

PSU Recommendation for all NVIDIA GPU’s


AMD GPU 7000 Series

GPU Intel i5 / Ryzen 5 Intel i7 / Ryzen7 Intel i9 / Ryzen9
RX 7900 XTX 850W 850W 1000W
RX 7900 XT 750W 750W 850W
RX 7600 550W 550W 650W

PSU Recommendation for all AMD GPU’s

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