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Cooler Master MasterBox MB320L DarkMirror Micro Tower Case

(£49.20 inc VAT)
Short description:
MicroATX Case, Supports ATX PSU
1 x 120mm Fan Included
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MasterBox MB320L - Better after darkmirror

  • DarkMirror Front Panel
  • Mesh Intakes
  • Tempered Glass Side Panel
  • Adaptable Drive Cage
  • Versatile Cooling Options
  • Room For Upgrades

A New Shade of Lighting

The MasterBox MB320L is a Micro-ATX PC case with honeycomb mesh ventilation on either side of the DarkMirror front panel. The DarkMirror front panel is smoked a shade darker to sharpen the contrast of optional fans mounted behind it, highlighting its best features.

A high potential for both air-cooled and liquid-cooled builds comprise of front, top, and rear ventilation with the possibility to mount additional fans and radiators. Upholding the award-winning principles of the MB Series, versatility is paired with presentation to ensure that any gaming system built inside the MasterBox MB320L looks as good as it performs.

Dimensions W D H
218mm 436mm 410mm
Weight 5.28kg
Front Fan Supports 3x 120mm, 2x 140mm fans
Rear Fan Includes 1 x 120mm Fan
Top Fan Supports 2x 120/140mm fans
Radiator Support Top - Up to 240mm Supported
Front - Up to 280mm Supported
Rear 120mm Supported
5"1/4 Bays 0 x 5"1/4 
3"1/2 Bays 2 x 3"1/2 (can support 2"1/2 also)
2"1/2 Bays 2 x 2"1/2
Motherboard Micro-ATX, Mini ITX
Power Supply ATX Supported, up to 180mm Length
Material Body: Steel
Front: Plastic
Side Window: Tempered Glass
CPU Cooler Max Height 166mm
Window Full Size Tempered Glass
Graphics Support Max 344mm Length
Vertical Graphics No
Expansion Slots 4 Horizontal
Hubs -
Connectors 2 x USB 3.2 Gen 1 x 2
Mic / Audio

DarkMirror Front Panel

The DarkMirror front panel shades light to add contrast to illuminated components.


DarkMirror Front Panel

Mesh Intakes

Large, mesh intakes span each side of the front panel to provide additional airflow to system.


Tempered Glass Side Panel

Hardware, custom-loop cooling, and the pure pride of the builder is shown in panoramic view through an edge-to-edge tempered glass side panel.

Adaptable Drive Cage

The drive cage is able to shift toward the front to accommodate for PSU space, backwards to provide additional radiator space, or even completely removed.

Depth / Length:

New features

Cooler Master


Case Form Factor:
MicroATX / uATX
Graphics Card Support:
Case Window:
Tempered Glass Side
Case Lighting:
Case Slim Optical Bay:
Case 5"1/4 Bays:
Case 3"1/2 Bays:
Case Dedicated 2"1/2 Bays:

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