Cooler Master NR400 mATX Tower Computer Case

Cooler Master
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  • Minimalistic mesh design: Elegant design elements are applied to mesh for optimal thermal performance.
  • Optimal thermal performance: the full mesh front panel and ventilated top panel provide a high potential for thermal performance.
  • Flush Tempered glass Side panel design: The tempered glass Side panel, fastened by thumbscrews on the rear panel, keeps the surface flush and unobstructed.
  • Graphics Card support up to 346 millimeter: Generous clearance space is provided to support the latest graphics cards.
  • With/without ODD support: depending on preference, an odd version of the chassis is available; If an odd is not preferred, a cleaner appearance and more cooling options on the top and front panels are supported.
  • Headset jack the single 4 pole headset jack: features both Audio and microphone capabilities simultaneously so that separate jacks are not needed.
  • Cable management: high quality rubber grommets are paired with 22 millimeter of clearance behind the motherboard TO offer ample room for cable management.

Product Description

Simplicity in aesthetics rarely reflect complexity in design. Cooler Master’s signature Fine Mesh spans the entire front panel for open airflow, makes up the structure of the case, and adds rigidity to its overall construction. Meticulously engineered for unhindered airflow, the MasterBox NR400 applies bold performance to a pure-and-simple design.


  • Cooler Master MasterBox NR400 Micro-ATX Tower with Front Mesh Ventilation
  • Minimal Design
  • Tempered Glass Side Panel
  • Single Headset Jack



Brand Name Cooler Master
Vendor Part Number MCB-NR400-KG5N-S00
Model Number MCB-NR400-KG5N-S00
GameStop Exclusive false


Product Length 16.18
Product Width 8.26
Product Height 16.18
Product Unit of Measure in
Product Weight 12.61
Product Weight Unit of Measure lbs

Care Instructions

Product Warning and State Regulation California Proposition 65 Warning

Cooler Master NR400 mATX Tower Computer Case