# Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow, Black (MCB-Q300L-KANN-S00)

- Category: Case
- Brand: Cooler Master
- Model: Q300L
- Part number: MCB-Q300L-KANN-S00
- Price (US): $39.99
- Price last checked: 2026-08-06
- Rating: 4.5/5 from 13490 Amazon reviews
- Warranty: 2 years
- Product page: https://buildmypc.net/component-details/case/cooler-master-q300l-mcb-q300l-kann-s00/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Cooler Master |
| Model | Q300L |
| Cabinet Type | MicroATX Mini Tower |
| Side Panel | Steel, Plastic |
| Color | Black |
| Power Supply | N/A |
| Maximum 3.5 Drive Space | N/A |
| Maximum 2.5 Drive Space | N/A |
| GPU Length | 14.17" / 360 mm |
| Supported PSU Size | ATX |

## Key Features

- Magnetic Dust Filters: The unique pattern of the dust filter adds a distinctive appearance to the case.
- Components Clearance: Accommodates CPU coolers with a max height of 159mm, GPU cards up to 360mm, and PSU up to 160mm in length.
- Versatile Cooling: Maximize cooling performance with a 240mm liquid cooler and 5 fans.
- Modular I/O Panel: You have the flexibility to adjust its position at the front, top, or bottom on both sides
- Edge-To-Edge Panel: Show off your meticulous build through the transparent side panel with pride.
- Open Thermal Design: The perforated design on all sides promotes optimal airflow and heat dissipation
- Ample Interior: Explore ample interior space for Micro-ATX or Mini-ITX motherboards, ensuring easy and future expansion

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