---
product_id: 724938204
title: "Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251"
brand: "cooler master"
price: "57536 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/724938204-cooler-master-masterbox-q300l-mini-tower-pc-case-mcb-q300l
store_origin: PL
region: Poland
---

# Spacious Interior with Easy Assembly Supports up to 6 Fans for Optimal Cooling Compact Mini-Tower Design Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251

**Brand:** cooler master
**Price:** 57536 zł
**Availability:** ✅ In Stock

## Summary

> 🖤 Master your setup with the MasterBox Q300L — where compact meets cool.

## Quick Answers

- **What is this?** Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 by cooler master
- **How much does it cost?** 57536 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/724938204-cooler-master-masterbox-q300l-mini-tower-pc-case-mcb-q300l)

## Best For

- cooler master enthusiasts

## Why This Product

- Trusted cooler master brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Yet Stylish:** Alloy steel and acrylic panels combine robustness with a clean, professional look—just watch for scratches!
- • **Modern Connectivity:** Equipped with 2 USB 3.0 ports for lightning-fast data transfers and peripheral support.
- • **Customizable Cooling Setup:** Supports up to 6 fans, ensuring your rig stays cool even during marathon work or gaming sessions.
- • **Sleek & Compact Powerhouse:** Fits perfectly on your desk without sacrificing performance or style.
- • **Tool-Free, Hassle-Free Assembly:** Spacious interior and smart layout make building or upgrading your PC a breeze.

## Overview

The Cooler Master MasterBox Q300L is a compact mini-tower PC case designed for Micro-ATX and Mini-ITX motherboards. It features a spacious interior for easy assembly, supports up to six fans for superior air cooling, and includes 2 USB 3.0 ports for modern connectivity. Constructed from alloy steel and acrylic, it balances durability with sleek aesthetics, making it a top choice for professionals seeking a stylish yet functional PC case.

## Description

-

## Features

- CS7251 Japanese Authorized Dealer
- Equipped with a geometric magnetic dust filter
- Uses modular I/O panels that can be adjusted to the mounting position
- Can be used both vertically and horizontally
- Equipped with large clear side panels
- Supports microATX and Mini-ITX motherboards
- Ensures space for expansion cards up to 360mm
- Accepts front water cooling radiators up to 240mm
- Superior Cable Management Design

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0785GRMPG |
| Amazon Bestseller | #113,711 in Computers ( See Top 100 in Computers ) #622 in Computer Cases |
| Antenna Location | Gaming |
| Brand | Cooler Master |
| Built-In Media | 1 x Computer Case |
| Case Type | Mini-Tower |
| Color | Black |
| Compatible Devices | Desktop PC |
| Cooling Method | Air |
| Customer Reviews | 4.4 4.4 out of 5 stars (14,531) |
| EU Spare Part Availability Duration | 2 Years |
| Enclosure Material | Alloy Steel Plastic |
| Fan Size | 144 Millimeters |
| Global Trade Identification Number | 00884102038006, 00884102095313, 04719512065488 |
| Hard Disk Form Factor | 3.5 Inches |
| Internal Bays Quantity | 1 |
| Item Dimensions D x W x H | 38.7D x 23W x 37.8H cm |
| Item Type Name | Grocery |
| Item Weight | 480 Grams |
| Manufacturer | Cooler Master |
| Mfr Part Number | MCB-Q300L-KANN-S00 |
| Model Name | Q300L |
| Model Number | MCB-Q300L-KANN-S00 |
| Number of Fans | 3 |
| Other Special Features of the Product | Adjustable, Breathable, Compatible with CPU Coolers, Dust Filter, Edge-to-edge panels |
| Power Supply Maximum Output | 500 Watts |
| Power Supply Mounting Type | Bottom Mount |
| Supported Motherboard | Micro-ATX and Mini-ITX |
| Total Expansion Slots Quantity | 4 |
| Total USB 3.0 Ports | 2 |
| Total Usb Ports | 2 |
| UPC | 884102095313 884102038006 |

## Product Details

- **Brand:** Cooler Master
- **Case Type:** Mini-Tower
- **Color:** Black
- **Cooling Method:** Air
- **Fan Size:** 144 Millimeters
- **Material:** Alloy Steel Plastic
- **Model Name:** Q300L
- **Motherboard Compatability:** Micro-ATX and Mini-ITX
- **Power Supply Mounting Type:** Bottom Mount
- **Recommended Uses For Product:** Gaming

## Images

![Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 - Image 1](https://m.media-amazon.com/images/I/91UOdM9izhL.jpg)
![Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 - Image 2](https://m.media-amazon.com/images/I/81KohRhMOZL.jpg)
![Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 - Image 3](https://m.media-amazon.com/images/I/81+rpaxzoYL.jpg)
![Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 - Image 4](https://m.media-amazon.com/images/I/718+isi0SoL.jpg)
![Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 - Image 5](https://m.media-amazon.com/images/I/811RcaP29JL.jpg)

## Available Options

This product comes in different **Pattern, Size, Style** options.

## Questions & Answers

**Q: Is this case wide enough to support a cooler master hyper 212 evo?**
A: I know what the official CM specs are, but I think it will fit.  This guy installed a taller cooler with its cover and it fit.  https://www.vortez.net/articles_pages/cooler_master_masterbox_q300l_review,8.html

**Q: I've seen photos of the handle (from a Q300P) being attached to the center of the top panel of this case. Is this possible?**
A: You can remove the plastic bit that has the cooler master logo on it and install handles on the case like the Q300P

**Q: what are the size and placements of the fans?**
A: There are 3 fans (120mm) in total. 1 exhaust fan in the rear, and 2 intake fans at the front.

-CM Myke

**Q: Does the case come pre-assembled?**
A: Hello Kevin,

The case does come assembled, but you will need to plug in the connectors, and open it up to install your components.

CM-PNguyen

## Frequently Bought Together

- 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)
- AMD Ryzen 5 5500 6-Core, 12-Thread Unlocked Desktop Processor with Wraith Stealth Cooler
- Thermaltake Smart 500W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Cooling Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0500NPCWUS-W

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-25*