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Metal base for the tempered glass panel

Cooler Master MasterBox MB500 PC Case Review

  1. About the Masterbox MB500…
  2. PC Case Overview- External
  3. PC Case Overview- Internal
  4. Compatibility Check and Installation Experience
  5. Setup images, Illumination Effects and Test Setup
  6. Performance Testing- Sound and Temperature
  7. Conclusion
  8. Online Purchase Links
  9. View All

Disclosure: The Masterbox MB500 is loaned by Cooler Master

Its been a long time since I’ve reviewed anything from Cooler Master and we’re starting again with the Masterbox MB500. This is an ATX PC case with emphasis on its RGB fans and its wide array of colours, tempered side glass panel and thermal performance. So let us just get into it and see how it goes.

Packaging and Contents

From its appearance, the packaging of the CM Masterbox MB500 looks small. It is even smaller than the Mastercase Pro 3 mATX PC case’s packaging. The packaging alone makes an impression similar to what CM Elite series ATX cases have made, but obviously, it would be bumped up to keep up with its Master philosophy. The packaging is minimal with adequate protection for the case. This is more important for cases like the MB500 as the side panel is tempered glass. It would be nice if the glass panel had some foam protection. Tempered glass can withstand accidental surface drops. But no hard drops. You get all the screws and mounts with the reading materials. By default, the standoffs are not pre-installed.


Product Name
MasterBox MB500
Product Number
Available Color
Steel, Plastic, Tempered Glass
Dimensions (LxWxH)
494 x 211 x 475mm
Motherboard Support
ATX, Micro-ATX, Mini-ITX
Expansion Slots
Drive Bays
3.5″ HDD
2 (Max. 2)
2.5″ SSD
2 (Max. 4)
I/O Port
USB 3.0 x 2, Audio In / Out
Pre-installed Fan(s)
120mm x 2 RGB LED fan
120mm x 1 RGB LED fan
Fan Support
120mm x 3 / 140mm x 2
120mm x 2
120mm x 1
Radiator Support
120 / 140 / 240 / 280 / 360mm radiator (limited) up to 50mm
thickness without fan
120mm x 1
CPU Cooler
Cable Routing
Behind MB Tray
15 – 23mm / 0.59″ – 0.90″
Dust Filters
Front, Bottom
Power Supply Support
Bottom mount, ATX
EAN Code
UPC Code

If you look at its specs, it is a small case to accommodate an ATX form factor motherboard. With its height at 475 mm and 211 mm width, but with 494 mm length. You can install up to 4 SSDs and 2 HDDs. There are three 120mm RGB fans included. Interestingly, the front panel is semi-ventilated. Cooler Master also provided an official measure for cable routing- 15mm which should be the area behind the motherboard and 23 mm which should its side, towards the front. There are no 5.25″ bays.


  1. Sir question is this support the new cooler master vertical mount GPU with no cutting grills?

  2. On this case? No, it does not. Many reviewers proved it vertical GPU mounts do not have a bad airflow.

  3. Where do I buy this please tell me

  4. It is already there in PC hardware stores nationwide.

  5. Are the case fans noisy and annoying under load ?

  6. That testing is done in the 6th page. In a room, it doesn’t really make a difference in a closed case setup. These are rifle bearing fans. Rifle bearing fans are quieter than sleeve bearing but with lifespan somewhere close to a ball bearing fan.

    The dB testing link is here: https://www.hardwarebbq.com/cooler-master-masterbox-mb500-pc-case-review/6/

  7. hello, i just build in this case but the rgb lights in the fan dont turn on, they are coneccted to he rgb controller, do you know what i could do? thanks

  8. They’re probably defective. You can ask for a replacement. Just send them the photographs of the controller module and the lack of lighting to their support at the same time so that they’ll proceed for a replacement.

  9. Just wondering will a 240mm radiator still fit with 2xssd drives installed in the front

  10. Just a question will a 240mm aio fit infront with 2xssd installed

  11. 120/240/360? Yes. 140/280? No.

    You could just install the SSDs over the PSU shroud since it has mounts and cut-outs for the cable.

  12. Thank you i just di.Not a fan of the bottom mounted ssd bays as the cables are away from the case but it works.Was a mission to remove my bottom fan but moved them up at top.I am just waiting on the courier to deliver the aio.

  13. Question sir
    Will deepcool castle 240ex tube length be enough to reach the motherboard? I am using standard atx board. I am afraid the distance between the front mount and cpu socket might be too great.

  14. oh yes. It should be fine.

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