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The Cooler MasterBox MB520 RGB is an aesthetically pleasing mid-tower case with three RGB fans. With its tempered glass side window and Dark Mirror front panel, the MB520 RGB is a real gem ready to host a muscular configuration. Its generous interior space allows for the installation of a Mini-ITX, Micro-ATX or ATX motherboard coupled with a graphics card of up to 410mm in length. With its optimised airflow and watercooling compatibility, this case ensures optimal cooling for each component. Discover without further delay a complete case with an excellent price/expansion ratio.
In addition to its outstanding aesthetics, the Cooler MasterBox MB520 RGB is a real jewel for those who want to build a powerful last generation configuration. This case is ready to receive an ATX, Micro-ATX or Mini-ITX motherboard with a 410 mm long graphics card. The CPU can be cooled by a 165 mm high cooling fan. Every detail has been thought out for easy mounting and space optimisation, such as the power supply slot and the dedicated space for the management cable. The tempered glass side window will allow you to keep an eye on all your components and will, for example, allow you to show off your RGB fans.
With its DarkMirror front panel, the Cooler MasterBox MB520RGB has a good air intake to cool the system in addition to the three 120mm RGB fans included in the front. In total, this case has 6 x 120mm (or 5 x 140mm) fan slots with one 120mm fan pre-installed on the back to allow you to choose your most optimised cooling solution for your configuration. Watercooling can also be installed on the front (120/140/240/280/360 mm), on the top (120/240 mm) or on the back with a 120 mm.
The MasterBox MB520 has 6 hard drive bays (2 x 2.5"/3.5" and 4 x 2.5") which are very practical. You will find 2 USB 3.0 ports on the front and audio connectivity (microphone and headphones).
Select your criteria
General information |
Product name |
Cooler Master MasterBox MB520 RGB |
Brand |
Cooler Master Ltd | |
Model |
MCB-B520-KGNN-RGB | |
Main characteristics |
Graphic card max. length |
410 mm |
Max height CPU fan |
165 mm | |
Power supply max. length |
180 mm | |
Power format |
ATX/EPS | |
Case format |
Mid tower | |
Use |
Gamer | |
Material |
Plastic | |
| Tempered glass | ||
| Steel | ||
Motherboard format |
ATX | |
| Micro ATX | ||
| Mini ITX | ||
Power supply supplied |
No | |
Design |
Screwless fixing system |
No |
Case color |
Black | |
Front color |
Black | |
Dust filters |
3 | |
Glass |
Yes | |
Tempered glass |
Yes | |
LED RGB |
Yes | |
ARGB LED |
No | |
Water cooling compatible |
Yes | |
Expansion slots |
Number of PCI slots |
7 |
Low profile |
No | |
Number of 2.5" slots |
4 | |
Number of 2.5"/3.5" slots |
2 | |
Front connectivity |
Location of expansion ports |
Top |
Connector(s) available |
2 X USB 3.0 | |
| Microphone (3.5mm Jack Female) | ||
| Headphone (3.5mm Jack Female) | ||
Cooling |
Number of rear fan(s) slots |
1 X 120mm |
Quantity of rear fan(s) supplied |
1 | |
Number of front fan(s) slots |
3 X 120mm | |
Quantity of front fan(s) supplied |
3 | |
Number of above fan(s) slots |
2 X 120 or 140mm | |
Quantity of above fan(s) supplied |
0 | |
Water cooling |
AIO radiator compatibility |
120mm radiator |
| 140mm radiator | ||
| 240mm radiator | ||
| 280mm radiator | ||
| 360mm radiator | ||
Front AIO slot(s) |
120mm radiator | |
| 140mm radiator | ||
| 240mm radiator | ||
| 280mm radiator | ||
| 360mm radiator | ||
Above AIO slot(s) |
120mm radiator | |
| 240mm radiator | ||
Rear AIO slot(s) |
120mm radiator | |
Physical characteristics |
Width |
218 mm |
Height |
468 mm | |
Depth |
496 mm | |
Weight |
5.34 kg | |
Volume |
50.6 l | |
Warranties |
Commercial warranty |
Seller 2 years |
Legal warranty |
See terms & conditions |
Product referenced on 22 Nov 2018
This tower corresponds perfectly to my expectations, its architecture with the numerous filtered rgb fans as well as the spaces for the management cable make this case a very good choice for the entry and mid-range, I recommend
I wanted to stay with Cooler Master and I was right because the case is magic, the glass changes everything. The front fans are linked by a single connector which means no wasted space on the motherboard.
This enclosure has excellent airflow, the components stay at the right temperature and the removable filters are perfect for quick cleaning.
I received this case on time, as described. I have been using it for a while now and it is a great value for money, but it is a great value for money and it is a great value for money. It's a mess, first disappointment with LDLC for me :/
Very nice tower, the quality is there, a lot of space to mount your configuration at ease
The front fans are slightly noisy but it's still ok.
I may regret not having bought the same tower but with ARGB fans for the same price.
In short I recommend this superb tower!
I was disappointed with this case; it looks good but the cable entry behind the motherboard bracket is not wide enough, and the same goes for the power cable exit which ends up all bent up against the HDD bracket.
The fans are too noisy for my taste.
So I reinstalled my new configuration in my old case: a graphite 600T series corsair where we have space
I have recently installed my pc with this super box, it is very nice and conforms to my expectations. The fans are nice but make a bit of noise (it has 4 fans) and my pc does not risk to heat up.
This is my first case for my first pc I've built myself. It suits me perfectly, spacious, easy to assemble. Perfect!
perfect for gaming or work, memory support everywhere
fan does the job slightly noisy
Too bad it doesn't come with the rgb controller
This Cooler Master tower fully meets my needs. Lots of space and very good cooling. Take care with the side glass although it is quite thick. I recommend this product.
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