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Compact black Mini-ITX tower with mesh steel panels, side window, pre-installed fans, tool-free panels, triple-slot GPU clearance

Cooler Master

Cooler Master MCB-NR200-KNNN-S00 Mini-ITX PC case

SKU CH-8QSA-1SQS8 MPN MCB-NR200-KNNN-S00

Compact 18-litre Mini-ITX case supporting triple-slot GPUs up to 330 mm, CPU coolers to 155 mm, 280 mm radiators and seven fan mounts

  • TypeMini-ITX Tower
  • ColorBlack
  • Case MaterialSteel, Plastic, Mesh
  • With Power SupplyNo
  • Power Supply MountedFront
  • Motherboard CompatibilityMini DTX, Mini ITX (Max. size: 244 x 226mm)

Options NR200 (Black)

  • NR200 (Black)
  • NR200P V2 (Black)

Struck-through versions exist but are not stocked here.

  • Vented panels on five sides deliver unrestricted airflow
  • Supports triple-slot GPUs up to 330mm long and 156mm wide
  • Holds CPU coolers up to 155mm tall or 280mm radiators
  • Tool-free panel removal gives 360-degree access to components
  • Fits Mini-ITX builds in an 18-liter steel chassis

Compact 18-Litre Mini-ITX Chassis

The MasterBox NR200 is an 18-litre steel-and-mesh tower that accepts Mini-ITX and Mini-DTX boards up to 244 by 226 millimetres. It is built for small-form-factor systems that still need full-length, triple-slot graphics cards and high-end air or liquid cooling.

Flexible Fan And Radiator Layout

Seven fan positions cover top, rear, bottom and side panels; a 92-millimetre rear fan and a 120-millimetre top fan are pre-installed. Radiator mounts at the side support 120, 140, 240 and 280-millimetre units, while the bottom takes 120 or 140-millimetre radiators for single-slot or vertical GPU configurations.

Tool-Free Panels And Front I/O

Every panel removes without tools, giving 360-degree access for assembly or maintenance. The front panel provides two USB 3.2 Gen 1 Type-A ports and a single audio jack, while internal drive mounts hold one 3.5-inch and two 2.5-inch devices.

Highlights

  • Vented panels on five sides deliver unrestricted airflow
  • Supports triple-slot GPUs up to 330mm long and 156mm wide
  • Holds CPU coolers up to 155mm tall or 280mm radiators
  • Tool-free panel removal gives 360-degree access to components
  • Fits Mini-ITX builds in an 18-liter steel chassis

Specifications

BrandCooler Master
SeriesMasterBox NR200
ModelMCB-NR200-KNNN-S00
TypeMini-ITX Tower
ColorBlack
Case MaterialSteel, Plastic, Mesh
With Power SupplyNo
Power Supply MountedFront
Motherboard CompatibilityMini DTX, Mini ITX (Max. size: 244 x 226mm)
Side Panelwith Side Window
Dust FiltersYes
Internal 3.5" Drive Bays1 (Max. 2)
Internal 2.5" Drive Bays2 (Max. 3)
Hot-Swap Drive Bays0
Expansion Slots3
Front Ports2 x USB 3.2 Gen 1 Type-A, 1 x Audio
Fan OptionsTop: 2 x 120mm fan (1 x 120mm fan Pre-installed)
Rear: 1 x 92mm fan (Pre-installed)
Bottom: 2 x 120mm fan (Recommended slim fans for GPUs wider than 2.5 PCI slots)
Side: 2 x 120mm / 140mm fan
Radiator OptionsRear: 92mm (not compatible with vertical GPU installation)
Bottom: 120mm, 140mm, (recommended only for single slot water-cooled GPUs or vertically mounted GPUs)
Side: 120mm, 140mm, 240mm, 280mm, (not compatible with vertical GPU installation)
80mm FansNo
120mm FansNo
140mm FansNo
Side Air ductYes
Max GPU LengthL: 330mm (incl. power connector), H: 156mm (incl. power connector), W: 60mm (triple slot)
Max CPU Cooler Height155mm, 76mm (GPU in vertical position)
Max PSU Length130 mm
Dimensions11.50" x 7.28" x 14.80" (incl. Protrusions)
10.79" x 7.28" x 14.17" (excl. Protrusions)
Weight10.1 lbs.
FeaturesUnrestricted Cooling Potential
Triple-slot GPU support
Easy, Tool-free access
360 Degree Accessibility
Multiple motherboard support options
Out-of-the-box Custom Cooling Support
High quality materials
Shipping weight5.30 kg
Package size435 × 348 × 284 mm

Questions about this item

What is the maximum graphics-card length and width this case can hold?

The case accepts triple-slot GPUs up to 330mm long and 156mm wide, with optional vertical mounting.

How many fans can be installed and which sizes are supported at each location?

Up to seven fans: top two 120mm, rear one 92mm, bottom two 120mm slim, side two 120mm or 140mm; one 120mm and one 92mm are pre-installed.

What radiator sizes fit and are there any placement restrictions?

Side mounts 120mm, 140mm, 240mm or 280mm; bottom takes 120mm or 140mm only with single-slot water-cooled or vertical GPU; rear fits 92mm but not with vertical GPU.

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