Cooler Master MasterBox NR400 Case Review

With the side open you can see just how open the design really is.  The PSU cover is integrated with the motherboard tray creating a basement for the PSU and adding stability and support without adding additional weight.

Cable management is helped on the back by a recessed motherboard tray and lots of zip-tie points. Even the power supply mounts slightly to one side to allow more room for cables next to the PSU.

The two storage locations are also hidden below and close to the traditional SATA cable runs.  All of the storage spaces are completely tool-free as well. Choosing the ODD version adds an additional 3.5” bay on the bottom of the drive cage. All this should make hiding those excess cables much easier for that big windowed install.

The open design provides plenty of room for full sized components with the only real limitation of selecting a Mini or Micro ATX motherboard. A graphics card up to 346mm will fit as will a CPU cooler up to 166mm tall (268mm for an MSI RTX Ventus 2080 for example).  A power supply up to 200mm is compatible but a smaller unit will allow for a larger radiator so plan accordingly!

I love the versatility Cooler Master has included in this mid tower design. The case is sharp and subtle in its design without any of the gaudy options to drive price up.  I do love the option to use a full sized video card and components in a smaller lighter package.  It just seems so modern.  And great for a LAN party build!

The Cooler Master NR400 shows good things can come in small packages! And it won’t break your budget.

Subtle Styling
Supports full sized components
Optical drive option available
Tool-less drive installation
Exceptional airflow.

Limited to Mini and Micro ATX motherboards
Only two 120mm fans included
Power supply choice is critical for water cooling builds