Cooler Master MasterBox 600 PC Case Review

Meet Cooler Master’s MasterBox 600

Meet the Cooler Master MasterBox 600

If there is one thing that Cooler Master’s new MasterBox 600 is supposed to represent, it’s value. With an asking price of £99, this case has a lot to offer. We have a tempered glass side panel, four pre-installed ARGB fans, and plenty of space for large components.

It isn’t uncommon for new PC cases to ship with few or no included fans. Cooler Master has gone against this trend by offering users four of their SickleFlow ARGB series fans. This makes Cooler Master’s new MasterBox a strong airflow case out of the box. Just add a 360mm liquid cooler to the roof and you will have all of this case’s fan slots filled.

Today, we will be looking at the white version of Cooler Master’s new MasterBox chassis. Note that this case features a tinted tempered glass window and not an fully clear window. Whether or not you like this design decision is a matter of personal preference.

Back-Connect motherboard support

Cooler Master’s new MasterBox 600 case supports back-connect motherboards. This includes MSI’s Project Zero and ASUS’ BTF motherboards. Back-connect motherboard support effectively future-proofs this case for users who may want to utilise these new motherboard designs in the future. Support for traditional motherboards is still available, which allows PC builders to use this PC case as normal.

This case supports graphics cards that are up to 410mm long, or 360mm long if you install a front-mounted liquid cooling radiator. Below we have installed the MSI RTX 4080 SUPER Expert.

As part of this review, we have installed Cooler Master’s new White Atmos 360 liquid cooler into the MasterBox 600. You can read our review of the black version of this CPU cooler here. We have even taken advantage of this cooler’s 3D printed add-on support with a custom OC3D top, which we made as part of our xTool P2 review.


Out of the box Cooler Master’s new 600 chassis ships with four included fans. All four of these fans are ARGB illuminated. Three of these fans are 140mm fans, and two of them are 120mm fans. Cooling-wise, this case supports CPU tower coolers that are up to 170mm tall. If you want to install a liquid cooling solution, you can install up to a 360mm radiator at the top of this case, or up to a 420mm liquid cooling radiator at the front of this case. Note that front mounted radiators up to 457 x 140 x 27 mm are supported. 420mm liquid cooling radiators with large end tanks will not fit.

This case supports up to two 3.5-inch drives and up to six 2.5-inch drives. It also supports graphics cards that are up to 410mm long. However, if a liquid cooling radiator is installed at the front of this case, only GPUs up to 360mm long will fit.

(Specifications list from Cooler Master)

Mark Campbell

Mark Campbell

A Northern Irish father, husband, and techie that works to turn tea and coffee into articles when he isn’t painting his extensive minis collection or using things to make other things.

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