---
product_id: 59059637
title: "Q300L V1 Micro-ATX PC Case, High Airflow, Transparent Panel | 360mm Graphics Card Support, 240mm AIO Support, Micro-ATX Motherboard, Magnetic Dust Filters, Modular I/O Panel"
brand: "cooler master"
price: "AR$6909"
currency: ARS
in_stock: true
reviews_count: 13
category: "Cooler Master"
url: https://www.desertcart.com.ar/products/59059637-q300l-v1-micro-atx-pc-case-high-airflow-transparent-panel
store_origin: AR
region: Argentina
---

# Magnetic dust filters, easy clean Max 5 fans + 240mm liquid cooler Supports Micro-ATX & Mini-ITX boards Q300L V1 Micro-ATX PC Case, High Airflow, Transparent Panel | 360mm Graphics Card Support, 240mm AIO Support, Micro-ATX Motherboard, Magnetic Dust Filters, Modular I/O Panel

**Brand:** cooler master
**Price:** AR$6909
**Availability:** ✅ In Stock

## Summary

> ❄️ Cool, Clean, and Customizable — The Q300L Means Business

## Quick Answers

- **What is this?** Q300L V1 Micro-ATX PC Case, High Airflow, Transparent Panel | 360mm Graphics Card Support, 240mm AIO Support, Micro-ATX Motherboard, Magnetic Dust Filters, Modular I/O Panel by cooler master
- **How much does it cost?** AR$6909 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/59059637-q300l-v1-micro-atx-pc-case-high-airflow-transparent-panel)

## 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

- • **Showcase Your Build:** Edge-to-edge transparent side panel lets your meticulously crafted rig shine with pride.
- • **Effortless Maintenance:** Magnetic dust filters with unique patterns combine aesthetics and easy cleaning to keep your system pristine.
- • **Spacious Compatibility:** Fits GPUs up to 360mm, CPU coolers up to 159mm, and standard ATX PSUs in a compact Micro-ATX frame.
- • **Unmatched Airflow Design:** Perforated cube chassis with up to 5 fan mounts and 240mm radiator support keeps your build cool under pressure.
- • **Modular I/O Panel Flexibility:** Customize your setup with 6 adjustable I/O panel positions for ultimate convenience and style.

## Overview

The Cooler Master Q300L V1 is a compact yet highly versatile Micro-ATX PC case engineered for superior airflow and modularity. Supporting up to 5 fans and a 240mm liquid cooler, it accommodates large GPUs (360mm) and CPU coolers (159mm) while featuring a fully ventilated cube design with magnetic dust filters. Its adjustable I/O panel and transparent side panel make it perfect for professionals seeking a sleek, efficient, and customizable build that stands out in any workspace.

## Description

The Master Box Q300L is your straightforward option in the lineup of the brand new Master Box Series from Cooler Master. A Series that might be small in size but excels in functionality and modularity without compromising on the thermal performance. Although the size wouldn't tell, the Master Box Q300L supports a standard ATX PSU which we don't see often in the market with this size. Based on the different system setup, the I/O panel can be adjusted to six different locations, three options at each side of the case. You can decide which setup fits your system best. Due to the cube design of the frame and special pattern design on the magnetic dust filter will make the chassis stand out from the rest. The combination of a practical design and the unique customizable outlook makes the Master Box Q300L The perfect choice for office and home.

Review: Excellent budget case. No frills. - Super budget case for a super budget build. Happy with the case. It's not the most solid thing in the world but it holds the guts of the PC just fine.
Review: Amazing Case For an Amazing Price! (Model: Q300L) - So first I'd like to state that this review is specifically for the Q300L model. desertcart does this annoying thing where they mix all the reviews of all the models together and I can't stand it so I'm just stating the model flat out. I just built my 10 year old nephew’s PC using this case and I have to say that I was very surprised at how much I loved building in this case. Originally I bought the Compucase HEC HX300 case for 30$ from Newegg and I was just frustrated at the lack of air flow from that case. It only had room for one fan which was the back exhaust and that's it. It didn't even have holes for the power supply's intake fan! It was my fault for not researching enough and buying something so cheap. Then I did a little research and came across this case. It is only 50$ but has everything I want. I've seen PC builders on youtube build with this case and they all had great things to say. So the first thing I like about this case is obviously how much airflow it allows. It's an interesting design because there are holes all over the top, all over the bottom, and all over the front and you can install 4 fans if you wanted to (2 up top, 2 in front, 2 in bottom) in addition to the included exhaust fan at the back making it support up to 5 fans! Now with all those holes you might be thinking this is going to be an ugly case but as you'll see in the pictures this is not the case (pun intended) and it has very sleek looking dust filters to cover the top, front, and it’s not obvious from the picture but it has a filter on the bottom as well. I was pleasantly surprised to see that the filter is magnetic which made removing them to install my fans a breeze (pun intended). I also imagine cleaning them when they get dirty will also be very simple. You can simple remove them and just rinse with water. One tip when installing fans is that since there’s air holes all over, they actually made a very small indentation around the holes that you should screw in your fans. These “guides” are hard to notice but if you look closely you’ll see them. They have space for 140mm and 120mm fans depending on whatever you want. Air is able to easily flow through the filter so my air flow issues were resolved! The case also looks very nice in my opinion. I have the black model just because that’s what my nephew wanted but in review videos I’ve seen, the white one looks very nice as well. Cable management at the back is pretty good too and the case comes with a lot of zip ties. The filters I mention above are also very aesthetically pleasing. The power button, 2 USB ports, headphone jack, and speaker jack are on the side which I don’t mind. The interesting thing is that this IO panel can be unscrewed and moved to the other side which is nice. The clear side panel is acrylic but it’s a 50$ case so it’s fine. It doesn’t look bad at all. There’s also room in the cable management area for a 3.5” hard drive and 2 SSD’s inside the main area which is very good. Overall the case was pretty simple to build in. It’s designed very well to maximize airflow while looking great. I think this is an excellent case especially for the price. If you’re in the market for a cheap but good PC case, then you my friends have stumbled on a cheap but GREAT PC case. I would highly recommend this case and am willing to do even more expensive builds with this case in the future. One final note I’ll add, I built my nephew’s pc with a Ryzen 5 1600 processor and RX 480 gpu reference model targeting 1080p gaming and the heat in my old case with that one exhaust fan was reaching around 87 degrees C. After I added two intake fans in the front and one exhaust fan in the top along with the back exhaust fan that comes with this case my temperatures went down into the mid 70’s while gaming which is great. If you want looks as well as functionality for a great price, go with this case.

## Features

- Ample Interior: Explore ample interior space for Micro-ATX or Mini-ITX motherboards, ensuring easy and future expansion
- 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
- Magnetic Dust Filters: The unique pattern of the dust filter adds a distinctive appearance to the case.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0785GRMPG |
| Antenna Location | Gaming |
| Best Sellers Rank | #7 in Computer Cases |
| Brand | Cooler Master |
| Built-In Media | 1 computer case |
| Case Type | Mini-Tower |
| Color | Dark Gray |
| Compatible Devices | Micro-ATX and Mini-ITX motherboards, Cooler Master devices |
| Cooling Method | Air |
| Customer Reviews | 4.5 out of 5 stars 13,996 Reviews |
| Enclosure Material | Alloy Steel, Plastic |
| 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 | 15.39"D x 9.06"W x 15"H |
| Item Type Name | grocery |
| Item Weight | 480 g |
| Manufacturer | Cooler Master |
| Material | Alloy Steel, Plastic |
| Mfr Part Number | MCB-Q300L-KANN-S00 |
| Model Name | Q300L |
| Model Number | MCB-Q300L-KANN-S00 |
| Motherboard Compatability | Micro-ATX and Mini-ITX |
| Number of Fans | 3 |
| Other Special Features of the Product | Accomodates CPU Coolers, Adjustable, Dust Filter, Edge-To-Edge Panel, Fully Ventilated |
| Power Supply Maximum Output | 500 watts |
| Power Supply Mounting Type | Bottom Mount |
| Recommended Uses For Product | Gaming |
| 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 |
| Warranty Description | 2 |

## Product Details

- **Brand:** Cooler Master
- **Case Type:** Mini-Tower
- **Color:** Black
- **Cooling Method:** Air
- **Item Weight:** 480 Grams
- **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

![Q300L V1 Micro-ATX PC Case, High Airflow, Transparent Panel | 360mm Graphics Card Support, 240mm AIO Support, Micro-ATX Motherboard, Magnetic Dust Filters, Modular I/O Panel - Image 1](https://m.media-amazon.com/images/I/91UOdM9izhL.jpg)

## Available Options

This product comes in different **Color, 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent budget case. No frills.
*by J***. on July 23, 2026*

Super budget case for a super budget build. Happy with the case. It's not the most solid thing in the world but it holds the guts of the PC just fine.

### ⭐⭐⭐⭐⭐ Amazing Case For an Amazing Price! (Model: Q300L)
*by F***A on June 25, 2020*

So first I'd like to state that this review is specifically for the Q300L model. Amazon does this annoying thing where they mix all the reviews of all the models together and I can't stand it so I'm just stating the model flat out. I just built my 10 year old nephew’s PC using this case and I have to say that I was very surprised at how much I loved building in this case. Originally I bought the Compucase HEC HX300 case for 30$ from Newegg and I was just frustrated at the lack of air flow from that case. It only had room for one fan which was the back exhaust and that's it. It didn't even have holes for the power supply's intake fan! It was my fault for not researching enough and buying something so cheap. Then I did a little research and came across this case. It is only 50$ but has everything I want. I've seen PC builders on youtube build with this case and they all had great things to say. So the first thing I like about this case is obviously how much airflow it allows. It's an interesting design because there are holes all over the top, all over the bottom, and all over the front and you can install 4 fans if you wanted to (2 up top, 2 in front, 2 in bottom) in addition to the included exhaust fan at the back making it support up to 5 fans! Now with all those holes you might be thinking this is going to be an ugly case but as you'll see in the pictures this is not the case (pun intended) and it has very sleek looking dust filters to cover the top, front, and it’s not obvious from the picture but it has a filter on the bottom as well. I was pleasantly surprised to see that the filter is magnetic which made removing them to install my fans a breeze (pun intended). I also imagine cleaning them when they get dirty will also be very simple. You can simple remove them and just rinse with water. One tip when installing fans is that since there’s air holes all over, they actually made a very small indentation around the holes that you should screw in your fans. These “guides” are hard to notice but if you look closely you’ll see them. They have space for 140mm and 120mm fans depending on whatever you want. Air is able to easily flow through the filter so my air flow issues were resolved! The case also looks very nice in my opinion. I have the black model just because that’s what my nephew wanted but in review videos I’ve seen, the white one looks very nice as well. Cable management at the back is pretty good too and the case comes with a lot of zip ties. The filters I mention above are also very aesthetically pleasing. The power button, 2 USB ports, headphone jack, and speaker jack are on the side which I don’t mind. The interesting thing is that this IO panel can be unscrewed and moved to the other side which is nice. The clear side panel is acrylic but it’s a 50$ case so it’s fine. It doesn’t look bad at all. There’s also room in the cable management area for a 3.5” hard drive and 2 SSD’s inside the main area which is very good. Overall the case was pretty simple to build in. It’s designed very well to maximize airflow while looking great. I think this is an excellent case especially for the price. If you’re in the market for a cheap but good PC case, then you my friends have stumbled on a cheap but GREAT PC case. I would highly recommend this case and am willing to do even more expensive builds with this case in the future. One final note I’ll add, I built my nephew’s pc with a Ryzen 5 1600 processor and RX 480 gpu reference model targeting 1080p gaming and the heat in my old case with that one exhaust fan was reaching around 87 degrees C. After I added two intake fans in the front and one exhaust fan in the top along with the back exhaust fan that comes with this case my temperatures went down into the mid 70’s while gaming which is great. If you want looks as well as functionality for a great price, go with this case.

### ⭐⭐⭐⭐ Good for a budget case, but the magnetic screens are annoying!
*by D***W on July 25, 2026*

If you are looking for a cheap, functional chassis to put together a budget build or an AI box, this case delivers strong performance for the price. The all-black exterior and interior look clean, the airflow is surprisingly solid, and all the included mounting hardware matches the sleek black look. It gets the job done for lower-end setups without breaking the bank. However, a few design choices create unnecessary friction while working on or moving the system. The interior is completely black, which sounds great visually, but it makes cable routing and component alignment remarkably frustrating. Unless you are building inside a bright, well-lit room, seeing small headers or threading cables through the dark cutouts takes extra effort. Another annoyance is the PCI expansion slot retention bracket on the back. Instead of allowing you to unscrew individual expansion slots to swap or clean a GPU, you have to undo a massive back plate to access any of the card slots. While it gives total access once off, it forces you to turn far too many screws just to service a single card. Finally, the magnetic dust filters are a double-edged sword. Being able to peel them off in one second for cleaning is convenient, but the magnets are too weak. The filters slide out of place every time you shift the case around, and pets can effortlessly hook a claw underneath the edges and pull them completely off. Pros and Cons Pros: Excellent value for a budget-friendly PC build Solid airflow performance considering the price point Sleek aesthetic with matching black screws and hardware Cons: All-black interior makes it very dark and difficult to route cables without bright room lighting PCI back plate setup requires removing a large bracket rather than individual component screws Magnetic dust filters shift out of place too easily and pull off with minimal force Final Verdict: This is a solid, cost-effective choice for lower-end systems, and I would use it again for budget projects. Just be prepared for a dark working space during assem

## 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 Argentina*
*Store origin: AR*
*Last updated: 2026-07-29*