---
product_id: 724938204
title: "MasterBox Q300L"
brand: "cooler master"
price: "Bs.74860"
currency: BOB
in_stock: null
reviews_count: 8
url: https://www.desertcart.bo/products/724938204-masterbox-q300l
store_origin: BO
region: Bolivia
---

# Modular I/O panels for flexible setup Magnetic dust filter for easy cleaning Large clear side panels for stylish display MasterBox Q300L

**Brand:** cooler master
**Price:** Bs.74860
**Availability:** ❌ Out of Stock

## Summary

> 🖤 Master your build with style and flexibility — the Q300L is where form meets function.

## Quick Answers

- **What is this?** MasterBox Q300L by cooler master
- **How much does it cost?** Bs.74860 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/724938204-masterbox-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

- • **Sleek Transparency:** Large clear side panels showcase your build, making your setup a statement piece.
- • **Spacious Expansion:** Room for GPUs up to 360mm and front 240mm water cooling radiators for serious power users.
- • **Versatile Orientation:** Supports both portrait and landscape setups to fit your unique workspace vibe.
- • **Effortless Clean Airflow:** Magnetic dust filter with geometric design keeps your rig pristine and cool.
- • **Customizable Connectivity:** Modular I/O panels let you tailor your ports exactly where you want them.

## Overview

The Cooler Master MasterBox Q300L is a compact, versatile mini-tower PC case compatible with microATX and Mini-ITX motherboards. It features a magnetic dust filter, modular I/O panels, and supports both portrait and landscape orientations. With space for large GPUs up to 360mm and front-mounted 240mm radiators, it offers excellent expansion options. Its large clear side panels and superior cable management make it ideal for gamers and professionals seeking a stylish yet functional build.

## Description

-

Review: スタイリッシュでコスパは良い！ - 骨董品のメインPC買い替えの為購入。 見た目が良く、コンパクトで軽量です。 内部も広く、私の様なﾞにわかﾞでも 問題無く組み付け出来ました。 不満点らしい不満点は特にありませんが、 気になった点としては底部メッシュがめくれやすく、 早速反ってしまいました。 また、側面のアクリルは傷がつきやすいようで、 初日にして早速目に見える痕が付きました（笑） 総合的には大変満足です。 久しぶりにPCケースを購入しましたが、 最近のケースは良くできているなぁと 感心させられました。
Review: 全体的にはいいケース。ただ静音性は皆無 - ここにはQ300L以外のレビューもあるようなので明記しておきます。 Cooler Master Mastercase Q300L のレビューになります。 良かった点 ・お手頃価格 ・コンパクト ・ビデオカードが大きいものも入る ・裏配線スペースが広い ・ファンが最大6つつけられる ・電源部など区切ってないので作業性がいい ・電源ボタンなどが横につけられる 微妙な点 ・ファンを取り付ける穴が小さく、ドリルで穴を開け直さなければ入らない。 ・サイドパネルがアクリルなので傷つきやすい ・全面穴だらけなのでうるさい。(ここはファンの設定次第でどうにもなりますがゲームをしたら辛い) 全体的にはいいケースだと思いますが私はさすがに音に耐えられず一ヶ月で手放しました。

## Features

- CS7251 Japanese Authorized Agent
- Equipped with a magnetic dust filter with a geometric pattern
- Modular I/O panels for freely changing mounting positions
- Supports both portrait and landscape viewing
- Equipped with large clear side panels
- Compatible with microATX and Mini-ITX motherboards
- Ensures space for expansion cards up to 360mm
- Can be installed up to 240mm water cooled radiators on the front
- Superior cable management design

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0785GRMPG |
| Amazon Bestseller | #107,967 in Computers ( See Top 100 in Computers ) #640 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 out of 5 stars 14,403 Your Review |
| 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 |
| Material | Alloy Steel, Plastic |
| Model Name | Q300L |
| Motherboard Compatability | Micro ATX |
| Number of Fans | 3 |
| Other Special Features of the Product | Magnetic Dust Filter |
| Power Supply Maximum Output | 500 Watts |
| Power Supply Mounting Type | Bottom Mount |
| Recommended Uses For Product | Gaming |
| Supported Motherboard | Micro ATX |
| 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
- **Power Supply Mounting Type:** Bottom Mount
- **Recommended Uses For Product:** Gaming

## Images

![MasterBox Q300L - Image 1](https://m.media-amazon.com/images/I/71EuTU+3SDL.jpg)
![MasterBox Q300L - Image 2](https://m.media-amazon.com/images/I/71wyMgMu4HL.jpg)
![MasterBox Q300L - Image 3](https://m.media-amazon.com/images/I/81-KniUpSbL.jpg)
![MasterBox Q300L - Image 4](https://m.media-amazon.com/images/I/813wR0wTuuL.jpg)
![MasterBox Q300L - Image 5](https://m.media-amazon.com/images/I/81Aav04jy-L.jpg)

## 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ スタイリッシュでコスパは良い！
*by ヲ***氏 on May 27, 2020*

骨董品のメインPC買い替えの為購入。 見た目が良く、コンパクトで軽量です。 内部も広く、私の様なﾞにわかﾞでも 問題無く組み付け出来ました。 不満点らしい不満点は特にありませんが、 気になった点としては底部メッシュがめくれやすく、 早速反ってしまいました。 また、側面のアクリルは傷がつきやすいようで、 初日にして早速目に見える痕が付きました（笑） 総合的には大変満足です。 久しぶりにPCケースを購入しましたが、 最近のケースは良くできているなぁと 感心させられました。

### ⭐⭐⭐⭐ 全体的にはいいケース。ただ静音性は皆無
*by あ***あ on January 12, 2021*

ここにはQ300L以外のレビューもあるようなので明記しておきます。 Cooler Master Mastercase Q300L のレビューになります。 良かった点 ・お手頃価格 ・コンパクト ・ビデオカードが大きいものも入る ・裏配線スペースが広い ・ファンが最大6つつけられる ・電源部など区切ってないので作業性がいい ・電源ボタンなどが横につけられる 微妙な点 ・ファンを取り付ける穴が小さく、ドリルで穴を開け直さなければ入らない。 ・サイドパネルがアクリルなので傷つきやすい ・全面穴だらけなのでうるさい。(ここはファンの設定次第でどうにもなりますがゲームをしたら辛い) 全体的にはいいケースだと思いますが私はさすがに音に耐えられず一ヶ月で手放しました。

### ⭐⭐⭐⭐⭐ A wonderful case with excellent mod cons
*by P***N on July 11, 2023*

This case is well laid out, with good mounting points for and HDD and two SSDs on the back side and plenty of space for cable runs (though with cables being long, you may still end up with spaghetti). The case has plenty of mounting points for 120mm and 140mm fans, with markings to distinguish different holes. The case is also well perforated to increase airflow. One things that may not be so good is that the front IO (power button and USB) can be moved. In theory this allows flexibility, but for my build, it not being hard mounted (and thus the space its cabling not being factored into design) means I had to put in an awkward place; a full length GPU prevents right hand mounting and a tall CPU cooler prevents top mounting. The only real drawback with this case comes from modern motherboards and GPUs. Moderns GPUs can be THREE SLOTS THICK (!) and take up space. On the first motherboard I used, this was not a problem, but the PCI on the second board was lower, so the clearance between the GPU and PSU is far too small for comfort.

## 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 Bolivia*
*Store origin: BO*
*Last updated: 2026-02-12*