Cooler Master MasterBox Q300L

System Flexibility
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.

Magnetic Dust Filters
Patterned magnetic filters create a unique look for your chassis while keeping your system's internals free from excess dust.

Small Form Factor, ATX PSU Support
Despite the Micro-ATX form factor and the body depth/height of only 370 x 370mm, the MasterBox Q300L can accommodate a normal ATX PSU.

Edge-to-Edge Acrylic Side Panel
Show off your build through the full size transparent side panel.

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

Routing Space
A space 28mm-wide behind the motherboard tray offers open space for hidden cable management.

Technical Information

Motherboard Supported:   Mini ITX
Motherboard Supported:   Micro ATX
Number of Fans Supported:   6
Number of Fans Installed:   1
Installed Fan Size:   4.72"

Bays

Number of External 5.25" Bays:   0
Number of Internal 3.5" Bays:   1
Number of Internal 2.5" Bays:   2
Number of Total Expansion Bays:   3

I/O Expansions

Number of Total Expansion Slots:   4

Interfaces/Ports

Total Number of USB Ports:   2
Total Number of Audio In Ports:   1
Total Number of Audio Out Ports:   1

Power Description

Power Supply Installed:   No
Number of Power Supplies Supported:   1
Number of Power Supplies Installed:   0

Physical Characteristics

Color:   Black
Material:   Plastic
Material:   Steel
Form Factor:   Mid-tower
Height:   14.9"
Width:   9.1"
Depth:   15.2"