PC Cases / Accessories

Cooler Master N400 Computer Case

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With the economy still in a steady rut most of us are left with very little spare cash for new toys. Cooler Master’s latest case is here to bring you the features you want in a case, at a price that won’t break the bank. Today I present to you the Cooler Master N400.

Review Sample Provided by: Cooler Master
Product Name/Link to Website: N400 NSE-400-KKN2
Product was given in exchange for work done to produce this review.


First Look- Packaging and Information


The Cooler Master N400 showed up at my door a little worse for ware on the outside as it was shipped with nothing but the box it came in with a shipping label slapped on it. UPS was not too brutal with the box so we will use it to the best of our abilities.


Our retail box comes fairly plain, not unexpected from a budget case and in no way a bad thing, what we have inside is what really matters.



With the box open we can see that the case is snug as a bug in a rug with nice foam for padding and a plastic bag cover to help protect against dings and scratches.


Cooler Masters N400 brings with it a few high-end features at a economical price including a painted interior, a clean front mesh bezel that includes two USB 3.0 ports, room for liquid cooling systems and more. There is no lack of features in this high value case.


Inside the box we also have the standard hardware of any case including a bag of standoffs, screws, and tie, a motherboard speaker ,and installation guide. Also included are three case filters and a removable bracket which will house up to two 2.5 hard drives.


  • Full mesh on the front panel
  • Supports a 240mm liquid cooling radiator or two 120mm fans on the right side / at the top
  • Supports a 120mm liquid cooling radiator in the rear
  • Supports up to 3 SSDs – 2 on the tool-less 2.5” cage, 1 at the bottom of HDD cage
  • Includes two XtraFlo 120 fans – in the front and one in the rear for optimum airflow – support for up to 8 fans
  • One optional 120/140mm fan can be installed on the left side panel to cool the graphics cards
  • Supports high-end graphics cards up to 320mm / 12.6 inch, including NVIDIA GTX 690 & AMD HD 7990
  • Dual Super Speed USB 3.0
  • 3 dust filters


Available ColorMidnight Black
MaterialsPolymer, mesh front bezel
Dimensions190 x 426 x 501.4 mm / 7.5 x 16.7 x 19.7 inch
Net Weight5.6 kg / 12.3 lbs
M/B TypemicroATX, ATX
5.25″ Drive Bays2 (exposed)
3.5″ Drive Bays8 (1 exposed, 7 hidden)
2.5″ Drive Bays3 (hidden)
I/O PanelUSB 3.0 x 2 (int.), USB 2.0 x 2, Mic x 1, Audio x 1 (supports AC97 / HD Audio)
Expansion Slots7
Cooling SystemTop: 120mm fan x 2 (optional)
Front: 120mm fan x 2 (one white LED XtraFlo fan installed, one optional) – for KKN1/KWN1; with no LED XtraFlo – for KKN2/KWN2
Rear: 120mm XtraFlo fan (no LED) x 1  (installed)
Left Side: 120/140mm fan x 1 (optional) – for KKN1 / KKN2 only
Right Side: 120mm fan x 2 (optional)
Power Supply TypeStandard ATX PS2
Maximum CompatibilityVGA card length: 320mm / 12.6 inch
CPU cooler height: 164mm / 6.4 inch

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Hidden away in a dark part of the Modders-Inc offices is a man, no a machine, that writes reviews so epic that they have been listed in the top ten best reads by the New York Times. Well that is what we tell him otherwise we have no idea what would happen if he knew the truth.

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