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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

  • Max graphics card lengthL: 330 mm (incl. power connector), H: 156 mm (incl. power co
  • Housing materialSteel, Plastic, Mesh
  • Power supply mountingFront
  • Supported motherboard sizesMini DTX, Mini ITX (Max. size: 244 × 226 mm)
  • Side panel typeWith Side Window
  • 3.5-inch internal bays1 (Max. 2)

Model NR200 (Black)

  • 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.

How it compares

Measured against everything we stock in Tower & Desktop PC Cases, at today’s prices. Recalculated every night.

Price $77.99
Cheaper than about 66% of the 1,468 comparable items (median $100.99).
Max graphics card length L: 330 mm (incl. power connector), H: 156 mm (incl. power connector), W: 60 mm (triple slot)
Lower than about 84% of the 894 comparable items (median 400 mm).

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Specifications

Product
Brand nameCooler Master
Product lineMasterBox NR200
Model nameMCB-NR200-KNNN-S00
Product typeMini-ITX Tower
Product colorBlack
Storage
3.5-inch internal bays1 (Max. 2)
2.5-inch internal bays2 (Max. 3)
Hot-swappable bays0
Ports & slots
Expansion card slots3
Front panel ports2 x USB 3.2 Gen 1 Type-A, 1 x Audio
Power
Power supply includedNo
Size & build
Max graphics card lengthL: 330 mm (incl. power connector), H: 156 mm (incl. power connector), W: 60 mm (triple slot)
Housing materialSteel, Plastic, Mesh
Power supply mountingFront
Side panel typeWith Side Window
Dust filteringYes
80mm fan countNo
Product dimensions11.5 in × 7.28 in × 14.8 in (incl. Protrusions)
10.79 in × 7.28 in × 14.17 in (excl. Protrusions)
Product weight10.1 lb (4.58 kg)
Shipping weight5.30 kg
Package size435 × 348 × 284 mm
Compatibility
Supported motherboard sizesMini DTX, Mini ITX (Max. size: 244 × 226 mm)
Radiator supportRear: 92 mm (not compatible with vertical GPU installation)
Bottom: 120 mm, 140 mm, (recommended only for single slot water-cooled GPUs or vertically mounted GPUs)
Side: 120 mm, 140 mm, 240 mm, 280 mm, (not compatible with vertical GPU installation)
CPU cooler height limit155 mm, 76 mm (GPU in vertical position)
PSU length limit130 mm
More details
120mm fan countNo
140mm fansNo
Side air ductYes

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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