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The N400 is a member of Cooler Master's N Series computer cases. All members of the N Series feature a mesh front panel that provides modern styling and optimized ventilation. Water cooling is fully embraced as N400 supports up to 240mm radiators for extreme cooling performance. Multiple dust filters located throughout the chassis make system maintenance simple and convenient.
SUPERIOR VENTILATION
The N Series features a premium, fully meshed front panel that allows substantial airflow to pass through the chassis. Strategic placement of the included fans provide optimum cooling for internal components out of the box.
COOLING FLEXIBILITY
Flexible mounting options including support for a 240mm radiator along the right side and 120mm at the rear.
SIMPLIFIED CLEANING AND MAINTENANCE
Multiple filters can be found throughout N400 (top, right, bottom) to make cleaning dusty build ups a breeze.
OPTIMIZED STORAGE SPACE
8 HDDs can be used to fill up all 3.5" drive bays, or replace two with SSDs in the tool-less slots. An additional SSD can be mounted at the bottom of the hard drive cage to reach maximum storage capacity.
MID TOWER SIZE
Built for ATX and Micro-ATX motherboard
COVERAGE
Parts, product replacement, and free technical support.
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![]() N200 |
![]() Silencio 352 |
![]() N300 |
![]() N400 |
![]() Silencio 652S |
Performance | AirFlow | Silence | AirFlow | AirFlow | Silence |
---|---|---|---|---|---|
Size | MATX Tower | MATX Tower | ATX Mid Tower | ATX Mid Tower | ATX Mid Tower |
Motherboard Support | Mini-ITX, Micro-ATX | Mini-ITX, Micro-ATX | Mini-ITX, Micro-ATX | Micro-ATX, ATX | Micro-ATX, ATX |
Micro-ATX, ATX | 202 x 378 x 445mm 7.9 x 14.9 x 17.5 inch | 202 x 378 x 445mm 7.9 x 14.9 x 17.5 inch | 190 x 426 x 501mm 7.5 x16.7 x 19.7 inch | 190 x 426 x 501mm 7.5 x16.7 x 19.7 inch | 508.6 x 220 x 507mm 20 x 8.7 x 20 inch |
Radiator Support | Front: 240mm radiator x1 Rear: 120mm radiator x1 |
Front: 240mm radiator x1 Rear: 120mm radiator x1 |
Side: 240mm radiator x1 Rear: 120mm radiator x1 |
Side: 240mm radiator x1 Rear: 120mm radiator x1 |
Top: 240mm radiator x1 Front: 240mm radiator x1 Rear: 120mm radiator x1 |
Fans Included | Front: 120mm XtraFlo fan x1 Rear: 120mm XtraFlo fan x1 |
Front: 120mm XtraFlo fan x1 Rear: 120mm XtraFlo fan x1 |
Front: 120mm SickleFlow fan Rear: 120mm SickleFlow fan |
Front: 120mm XtraFlo fan x1 Rear: 120mm XtraFlo fan x1 |
Front: 120mm Silencio x2 Rear: 120mm Silencio fan x1 |
Maximum Number of SSDs Supported | 4 | 4 | 3 | 3 | 10 |
Maximum Number of HDDs Supported | 3 | 3 | 8 | 8 | 9 |
Sound Dampening Panels | None | √ | None | None | √ |
Convertible Panels with Removable Covers |
None | √ | None | None | √ |
Removable Dust Filters | √ | √ | √ | √ | √ |
Meshed Front Panel | √ | None | √ | √ | None |
Side Panel Window | None | None | √ | None | None |
Pros: This is one of those cases you will find yourself tinkering with until you've found your sweet spot for satisfaction. I placed three different builds into this case since I purchased it, and the last build will be the one I keep configured. I found myself dismantling the entire case and every included component to the bare frame. I've tinkered with the cable management, IO panel, hardware mounts, insulation, cages, and etcetera, multiple times. I figured out what works best with this chassis. I've never had an mATX/ITX designated case consist of so many options to choose from, especially for the low price point. Its construction should not fool anyone. The pictures posted online do not serve it justice. It's lightweight, and NOT flimsy compared to other cases of similarity. The airflow potential in this case is remarkable. 3 pre-mounted case fans are included with the purchase, and can easily be removed and/or upgraded accordingly. Thank you Cooler Master. This case is dead silent if you use a water cooling solution without case fans and moving components. All of the set screws and grommets are included as well.
Cons: Cable management and disassembly are the largest concerns for this case. Once you've disassembled the entire chassis, reassembly and build configuration become easier. The reason cable management is a concern is if you A) do not use a modular power supply, and B) install more components than needed to run a simple desktop PC. Tucking the cables behind the motherboard tray can be tedious. I suggest you invest in using the zip-ties and finding notches to strap the cables to. Stacking cables may not allow the panel doors to close properly. They are prone to bending and bulging. Please be careful.
Overall Review: For clarification purposes, the chassis supports the following drive configurations. 1x 5.25in Drive mounted in the optical bay. (External) 1x 3.5in Drive mounted under the optical bay. (External) 2x 3.5in Drives mounted on the bottom of the chassis (Internal) This cage can also shift positions in the chassis. 2x 2.5in Drives (One under the modular bay, One above the 3.5in cage) (Internal) 2x 2.5in Drives (Mounted on the motherboard tray, using the included rubber grommets) (Internal) Users can swap out the 2x 3.5in drives for 4x 2.5in drives by using adaptors to mount in the cages. For users looking to invest in water cooling solutions for this case, I strongly advise you stick to single radiator solutions rather than the maximum permitted 240mm solutions available on the market. I attempted to front-mount install the h100 from Corsair and realized that the tubing restricted both the cable management options available with this case and the internal component mounts. For anyone that's curious, this is the build I installed in the N200. Case: Cooler Master N200 CPU: AMD Phenom II X6 1100T Black Edition Cooler: Corsair H50 Watercoolor Using 2 ~5v @1000±RPM Fans for Push-Pull Exhaust Motherboard: MSI 880GMA-E45 (MATX/AM3) Memory: GSkill RipJaws 4x4GB DDR3 1600mhz CAS 9 PSU: Corsair Enthusiast 650W NonModular GPU: Onboard AMD Radeon Graphics Optical Drive: LG BluRay Combo Burner Storage: 1x Samsung 850 Pro 2.5in 256GB Storage: 1x Samsung/Seagate 2.5in 1TB 5400RPM Storage: 2x WD Green EARS/EARX 3.5in 2TB 5400RPM