---
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: "S$509"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/104531320-cooler-master-masterbox-q300l-tuf-gaming-alliance-edition-micro-atx
store_origin: SG
region: Singapore
---

# 6-position adjustable I/O panel Fully ventilated airflow design Edge-to-edge transparent 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:** S$509
**Availability:** ✅ In Stock

## Summary

> 🛡️ Gear up with the MasterBox Q300L TUF — where style meets unstoppable performance.

## 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?** S$509 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/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

- • **Show Off Your Build:** Edge-to-edge acrylic side panel puts your rig on full display—because your setup deserves the spotlight.
- • **Battle-Ready Cooling:** Perforated front, top, and bottom panels maximize airflow to keep your components cool under pressure.
- • **Versatile Compatibility:** Supports Micro-ATX and Mini-ITX motherboards with standard ATX PSU mounting—flexibility meets power.
- • **Customizable Connectivity:** Six adjustable I/O panel positions let you tailor your build’s accessibility to your workspace and style.
- • **TUF Gaming Alliance Aesthetic:** Military-inspired design with TUF branding for a cohesive, pro-gamer look that commands respect.

## Overview

The Cooler Master MasterBox Q300L TUF Gaming Alliance Edition is a Micro-ATX tower case featuring a full-size transparent acrylic side panel, six-position adjustable I/O panel, and fully ventilated design with perforated panels for superior airflow. Designed for gamers and PC builders seeking a military-inspired TUF aesthetic, it supports Micro-ATX and Mini-ITX motherboards and standard ATX power supplies, combining flexibility, cooling efficiency, and striking visuals.

## 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.

## 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 |
| Antenna Location | Gaming |
| Brand | Cooler Master |
| Case Type | Tower |
| Color | Q300L TUF |
| Compatible Devices | mATX motherboards, ATX power supply units, 3.5 inches hard drives or solid-state drives, 2.5 inches hard drives or solid-state drives, USB devices |
| Cooling Method | Air |
| Customer Reviews | 4.4 out of 5 stars 751 Reviews |
| Enclosure Material | Acrylic |
| Global Trade Identification Number | 00884102050428 |
| Hard Disk Form Factor | 3.5 inches |
| Internal Bays Quantity | 3 |
| Manufacturer | Coolermaster |
| Material | Acrylic |
| Mfr Part Number | MCB-Q300L-KANN-TUF |
| Model Name | MCB-Q300L-KANN-TUF |
| Model Number | MCB-Q300L-KANN-TUF |
| Motherboard Compatability | Micro-ATX, Mini-ITX |
| Number of Fans | 3 |
| Number of Items | 1 |
| Other Special Features of the Product | Edge-to-edge Transparent Side Panel, TUF Gaming Styling, Adjustable I/O Panel |
| Power Supply Mounting Type | Bottom Mount |
| Recommended Uses For Product | Gaming |
| Supported Motherboard | Micro-ATX, Mini-ITX |
| Total Expansion Slots Quantity | 4 |
| Total USB 2.0 Ports | 2 |
| Total USB 3.0 Ports | 2 |
| Total Usb Ports | 3 |
| UPC | 884102050428 |

## 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/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 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/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 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/71vOww12L8L.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.

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-09-27*