---
product_id: 104531320
title: "Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF)"
brand: "cooler master"
price: "€ 170.54"
currency: EUR
in_stock: true
reviews_count: 12
url: https://www.desertcart.sk/products/104531320-cooler-master-masterbox-q300l-tuf-gaming-alliance-edition-micro-atx
store_origin: SK
region: Slovakia
---

# 6 adjustable I/O panel positions Fully ventilated perforated design for airflow Edge-to-edge transparent acrylic side panel Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF)

**Brand:** cooler master
**Price:** € 170.54
**Availability:** ✅ In Stock

## Summary

> 🛡️ Build Bold, Stay Cool, Game On!

## Quick Answers

- **What is this?** Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF) by cooler master
- **How much does it cost?** € 170.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/104531320-cooler-master-masterbox-q300l-tuf-gaming-alliance-edition-micro-atx)

## 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

- • **Breathe Easy:** Perforated front, top, and bottom panels maximize airflow to keep your components cool under pressure.
- • **Show Off Your Build:** Edge-to-edge transparent side panel puts your rig on full display—because your setup deserves the spotlight.
- • **Effortless Maintenance:** Magnetic dust filters on front and top panels make cleaning a breeze—stay dust-free without the hassle.
- • **Customizable Connectivity:** Six flexible I/O panel locations let you tailor your ports for ultimate convenience and desk aesthetics.
- • **TUF Gaming Alliance Ready:** Military-inspired design and TUF branding create a cohesive, battle-ready look for your gaming ecosystem.

## Overview

The Cooler Master MasterBox Q300L TUF Gaming Alliance Edition is a micro-ATX tower designed for gamers and PC builders who demand style and performance. Featuring a full acrylic transparent side panel, six adjustable I/O panel positions, and a fully perforated chassis for superior airflow, it supports mATX and mITX motherboards with excellent cable management and dust filtration. Its military-inspired TUF aesthetic ensures your build looks as tough as it performs, making it a standout choice for budget-conscious professionals who want a sleek, functional, and customizable case.

## Description

The Master Box Q300L joins the TUF Gaming Alliance, carrying the TUF marks on both of the magnetic filters and both side panels. For a cohesive TUF setup, the military styling ensures that components are in uniform and ready for battle. The Master Box Q300L brings all of its advantages to the TUF Gaming Alliance, with support for a standard ATX PSU for mATX motherboards. The I/O panel can be adjusted to six different locations, three options at each side of the case.

Review: A great budget mATX / mITX case with excellent airflow. - This is an excellent budget case for an mATX or mITX build. Was easy to route cables for effective cable management, even when using a non-modular PSU, as there is plenty of room behind the motherboard tray. Furthermore, this case will accept a “full-width” mATX board, as it has a full set of stand-off holes for both mATX and mITX. Airflow is excellent and, for a low power (e.g. ~ 35w TDP CPU + iGPU) build, you only need your stock CPU cooler and the single rear chassis exhaust fan (which is a good quality CoolerMaster rifled-bearing fan). The case comes with top, bottom and front removable dust filters which, for the top and front, are magnetic fit. This is, however, an inexpensive case, so don’t expect RGB fans, fanbus controllers, tempered glass (the glass panel is acrylic), or heavyweight construction. What you do get is a handsome enough looking case, with lots of fan and radiator mounting options, great airflow and dust filtering, that is easy to work in.
Review: Well built, designed and great looking case - I bought this to hold an older i7 motherboard I acquired. The system is great. The case has many features that surprised me. You usually don't consider case features to be a big selling point for day-to-day use. That's where the surprises come in. The magnetic dust covers work interchangeably and are so easy to remove, clean, and then put back. They hold up well. The side plastic is durable and holds up to use. Doesn't get to dusty. The most fun I had with the case is that the whole thing is perforated with holes. This becomes handy because you can mount as many or as few fans as you like anywhere. You can also mount switches and buttons utilizing the perforated holes as well. When you add the magnetic dust covers back you never notice a thing. The design and quality is more than what I expected from a Cooler master case. They really outdid themselves on this one. I have owned three cooler master cases so far and each one I bought for the price and exceeded my expectations. Good Job. The one caveat I would say is the bottom case has a thin, metal dust cover, that seems to fray at the edges. On carpet or along any surface it seems to come right off and snag on anything it is placed on. It becomes annoying if you move it around alot.

## Features

- Edge to edge transparent side panel: Show off your build through the full size transparent side panel
- High flexibility for system building: 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
- Excellent thermal performance: The open design of the perforated front, top and bottom s excellent thermal performance potential

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07N99WHP1 |
| Brand | Cooler Master |
| Color | Q300L TUF |
| Customer Reviews | 4.4 4.4 out of 5 stars (751) |
| Date First Available | January 31, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 9.88 pounds |
| Item model number | MCB-Q300L-KANN-TUF |
| Manufacturer | Coolermaster |
| Number of USB 2.0 Ports | 2 |
| Number of USB 3.0 Ports | 2 |
| Package Dimensions | 17.6 x 16.9 x 10.7 inches |
| Series | MCB-Q300L-KANN-TUF |

## Product Details

- **Brand:** Cooler Master
- **Case Type:** Tower
- **Color:** Q300L TUF
- **Cooling Method:** Air
- **Material:** Acrylic
- **Model Name:** MCB-Q300L-KANN-TUF
- **Motherboard Compatability:** Micro-ATX, Mini-ITX
- **Number of Expansion Slots:** 4
- **Power Supply Mounting Type:** Bottom Mount
- **Recommended Uses For Product:** Gaming

## Images

![Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF) - Image 1](https://m.media-amazon.com/images/I/61soXekbV+L.jpg)
![Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF) - Image 2](https://m.media-amazon.com/images/I/71AOJ2mXjVL.jpg)
![Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF) - Image 3](https://m.media-amazon.com/images/I/71G5OdedPkL.jpg)
![Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF) - Image 4](https://m.media-amazon.com/images/I/71I+3vTMCPL.jpg)
![Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF) - Image 5](https://m.media-amazon.com/images/I/71YeqmrhOlL.jpg)

## Questions & Answers

**Q: Will the asus geforce gtx 1060 3gb dual-fan oc fit in this case**
A: According to the Asus website, the dimensions for that card are 24.2 x 13 x4.3 Centimeter
I'm currently using a Zotac 1060 6GB AMP! Edition, whose dimensions are 210mm x 121.8mm x 37mm
The ASUS card is about an Inch longer, but there is WAY more than enough room in the case to fit the ASUS card.

**Q: Can it fit the massive rtx 3070 tuf?**
A: It can, but if you are spending money on a nice system, I wouldn't cheap out with this case. The front IO panel is worthless when it comes to the audio jacks as it is very flimsy and the connection doesn't line up flush and I had to literally saw out malformed metal to get PCI cards in. I would assume that isn't normally the case (it was clearly messed up) and you wouldn't necessarily have that problem.

**Q: can it fit a normal ATX power supply?**
A: Absolutely will fit any ATX power supply. I'm using thermaltake smart series 500w rgb.

**Q: Can i fit a 5.5 x 5.9 x 3.4 inches psu into this case?**
A: Sure. I have a 1000 watt 5.5" x 8" x 4" psu in there no problem. You'll have to compromise on fan placement and gpu length though.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A great budget mATX / mITX case with excellent airflow.
*by "***" on January 4, 2021*

This is an excellent budget case for an mATX or mITX build. Was easy to route cables for effective cable management, even when using a non-modular PSU, as there is plenty of room behind the motherboard tray. Furthermore, this case will accept a “full-width” mATX board, as it has a full set of stand-off holes for both mATX and mITX. Airflow is excellent and, for a low power (e.g. ~ 35w TDP CPU + iGPU) build, you only need your stock CPU cooler and the single rear chassis exhaust fan (which is a good quality CoolerMaster rifled-bearing fan). The case comes with top, bottom and front removable dust filters which, for the top and front, are magnetic fit. This is, however, an inexpensive case, so don’t expect RGB fans, fanbus controllers, tempered glass (the glass panel is acrylic), or heavyweight construction. What you do get is a handsome enough looking case, with lots of fan and radiator mounting options, great airflow and dust filtering, that is easy to work in.

### ⭐⭐⭐⭐⭐ Well built, designed and great looking case
*by R***A on February 19, 2022*

I bought this to hold an older i7 motherboard I acquired. The system is great. The case has many features that surprised me. You usually don't consider case features to be a big selling point for day-to-day use. That's where the surprises come in. The magnetic dust covers work interchangeably and are so easy to remove, clean, and then put back. They hold up well. The side plastic is durable and holds up to use. Doesn't get to dusty. The most fun I had with the case is that the whole thing is perforated with holes. This becomes handy because you can mount as many or as few fans as you like anywhere. You can also mount switches and buttons utilizing the perforated holes as well. When you add the magnetic dust covers back you never notice a thing. The design and quality is more than what I expected from a Cooler master case. They really outdid themselves on this one. I have owned three cooler master cases so far and each one I bought for the price and exceeded my expectations. Good Job. The one caveat I would say is the bottom case has a thin, metal dust cover, that seems to fray at the edges. On carpet or along any surface it seems to come right off and snag on anything it is placed on. It becomes annoying if you move it around alot.

### ⭐⭐⭐⭐ Great Budget Case with amazing airflow!!!
*by D***R on July 28, 2019*

I have built pc's in over 30 computer cases in the last 5 years most around $100+ and I have to say this $50 case is not missing that many features of it's more expensive counter parts. Other then tempered glass. Pros. Great Airflow. Very nice design that works with most hardware colors. USB 3.0 on the front. Very easy to work in. 2x Internal 2.5" SSD mounts so you can see those drives in action! Fits most power supply's with no issues. No sharp edges. No case flex, feels very solid. Con's: Has a weird way of installing the power supply that can make it harder to plug and unplug. Acrylic side panels are easy to damage and scratch even when cleaning with a microfiber cloth--- Not much of a con at the asking price though. Final thoughts, For the price is is one of the best MATX cases that I have ever worked in. It is packed with allot of feature that you often need to spend more to get. Airflow is great in this case due to the whole front is a intake with very little blocking the airflow's path. If you are in the market for a solid case and don't want to spend a ton this case is for you.

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-20*