description Cooler Master MasterBox Q300L Overview
The Cooler Master MasterBox Q300L is a compact, mid-tower PC case featuring a mesh front panel for improved airflow and supports ATX motherboards with up to six expansion slots. It offers cable management options and includes pre-installed fans.
help Cooler Master MasterBox Q300L FAQ
Can the Cooler Master MasterBox Q300L hold an ATX motherboard?
No. The original Q300L supports micro-ATX and Mini-ITX boards, with four expansion slots. It can accept a full-size ATX power supply, which is sometimes the source of the motherboard-size confusion.
Is the original Q300L side panel tempered glass?
No. Cooler Master specifies an edge-to-edge acrylic side panel on the original Q300L. Newer models such as the Q300L V2 use tempered glass, so replacement parts and reviews need to be matched to the exact version.
How many fans come with the MasterBox Q300L?
The original case includes one 120 mm rear fan. It supports two 120 or 140 mm front fans, two 120 mm top fans, and one 120 mm bottom fan.
Can the MasterBox Q300L be used horizontally?
Yes. Cooler Master designed it for either vertical or horizontal placement, and the I/O panel can move among six positions on the side edges. The case measures 387 by 230 by 381 mm.
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