MasterBox Q300L

Description

Choose Your Style

  • High Flexibility for System Building
  • Minimized Dimension with ATX PSU Support
  • Patterned Dust Filter
  • Clean Routing Space
  • Excellent Thermal Performance
  • Edge-to-Edge Acrylic Transparent Side Panel
  • Vertical and Horizontal position

Patterned Magnetic Dustfilters

Special pattern on the dust filter creates a unique outlook for the chassis.

Modular I/O Panel

The I/O panel can be adjusted to six different locations. On both side of the body you can install the I/O panel at the front, top or bottom.

Edge-To-Edge Side Panel

Show off your build through the full size transparent side panel.

Multiple Positioning Options

The case can be put in vertical or horizontal position.

Excellent Thermal Performance

The open design of the perforated front, top and bottom guarantees excellent thermal performance

Clean Routing Space

Behind the motherboard tray, 28mm of space is offered for cable management.

Fan and Radiator Support

The front supports up to two 140mm fans and up to a 240mm radiator. The rear supports a 120mm fan or radiator and the top two 120mm fans. All to ensure you don't have to compromise on performance.

Main Components Clearance

The MasterBox Q300L case supports CPU coolers up to a height of 159mm, graphics cards up to a length of 360mm, and power supplies up to a length of 160mm.

Specifications

Model Number MCB-Q300L-KANN-S00
Color(s) Black
Materials Steel, Plastic
Dimensions (L x W x H) 387 x 230 x 381mm
Motherboard Support Mini-ITX, Micro-ATX
Expansion Slots 4
5.25" Drive Bays 0
3.5" Drive Bays 1
2.5" Drive Bays 2
I/O Panel - USB Ports 2x USB 3.0
I/O Panel - Audio In / Out 1x 3.5mm Audio Jack, 1x 3.5mm Mic Jack
Pre-installed Fans - Rear 1x 120mm
Fan Support - Front 2x 120/140mm
Fan Support - Top 2x 120mm
Fan Support - Rear 1x 120mm
Fan Support - Bottom 1x 120mm
Radiator Support - Front 120 / 240mm
Radiator Support - Front 120mm
Radiator Support - Rear 120mm
Clearance - CPU Cooler 159mm
Clearance - PSU 160mm
Clearance - GFX 360mm
Dust Filters Bottom
Power Supply Support Bottom Mount, ATX PS2
Warranty 2 years
Size Mini Tower
Series MasterBox Series

MasterBox Q300L

Product form

Choose Your Style High Flexibility for System Building Minimized Dimension with ATX PSU Support Patterned Dust Filter Clean Routing Space... Read more

€49.99 Incl. VAT

SKU: MCB-Q300L-KANN-S00
Barcode: 4719512065488

    • Shipped today? Order within: Oct 28, 2026 23:59:00 +0100

      Description

      Choose Your Style

      • High Flexibility for System Building
      • Minimized Dimension with ATX PSU Support
      • Patterned Dust Filter
      • Clean Routing Space
      • Excellent Thermal Performance
      • Edge-to-Edge Acrylic Transparent Side Panel
      • Vertical and Horizontal position

      Patterned Magnetic Dustfilters

      Special pattern on the dust filter creates a unique outlook for the chassis.

      Modular I/O Panel

      The I/O panel can be adjusted to six different locations. On both side of the body you can install the I/O panel at the front, top or bottom.

      Edge-To-Edge Side Panel

      Show off your build through the full size transparent side panel.

      Multiple Positioning Options

      The case can be put in vertical or horizontal position.

      Excellent Thermal Performance

      The open design of the perforated front, top and bottom guarantees excellent thermal performance

      Clean Routing Space

      Behind the motherboard tray, 28mm of space is offered for cable management.

      Fan and Radiator Support

      The front supports up to two 140mm fans and up to a 240mm radiator. The rear supports a 120mm fan or radiator and the top two 120mm fans. All to ensure you don't have to compromise on performance.

      Main Components Clearance

      The MasterBox Q300L case supports CPU coolers up to a height of 159mm, graphics cards up to a length of 360mm, and power supplies up to a length of 160mm.

      Specifications

      Model Number MCB-Q300L-KANN-S00
      Color(s) Black
      Materials Steel, Plastic
      Dimensions (L x W x H) 387 x 230 x 381mm
      Motherboard Support Mini-ITX, Micro-ATX
      Expansion Slots 4
      5.25" Drive Bays 0
      3.5" Drive Bays 1
      2.5" Drive Bays 2
      I/O Panel - USB Ports 2x USB 3.0
      I/O Panel - Audio In / Out 1x 3.5mm Audio Jack, 1x 3.5mm Mic Jack
      Pre-installed Fans - Rear 1x 120mm
      Fan Support - Front 2x 120/140mm
      Fan Support - Top 2x 120mm
      Fan Support - Rear 1x 120mm
      Fan Support - Bottom 1x 120mm
      Radiator Support - Front 120 / 240mm
      Radiator Support - Front 120mm
      Radiator Support - Rear 120mm
      Clearance - CPU Cooler 159mm
      Clearance - PSU 160mm
      Clearance - GFX 360mm
      Dust Filters Bottom
      Power Supply Support Bottom Mount, ATX PS2
      Warranty 2 years
      Size Mini Tower
      Series MasterBox Series

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