Cooler Master MasterBox Q300L Computer Case 'Magnetic Patterned Dust Filters, mini tower, Alloy Steel, Modular I/O Panel, Window Side Panel' MCB-Q300L-KANN-S00, Black
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Cooler Master MasterBox Q300L Computer Case 'Magnetic Patterned Dust Filters, mini tower, Alloy Steel, Modular I/O Panel, Window Side Panel' MCB-Q300L-KANN-S00, Black

4.4/5
Product ID: 59059636
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Details

  • Brand
    Cooler Master
  • Motherboard compatibility
    Mini ITX Mini
  • Case type
    Mini-Tower
  • Recommended uses for product
    Video Games
  • Colour
    Black
  • Material
    Alloy Steel
🔄Modular I/O Panel
🧼Magnetic Dust Filters
🌬️Multiple Cooling Options

Description

🖥️ Build it, Show it, Love it!

  • COOLING POWERHOUSE - Support for multiple fans and radiators ensures your system stays cool under pressure.
  • SHOWCASE YOUR BUILD - Edge-to-edge transparent panel lets your components shine like the stars they are.
  • VERSATILE ORIENTATION - Stand it tall or lay it flat—your choice for optimal airflow and style.
  • AMPLE SPACE FOR UPGRADES - Generous interior dimensions accommodate the latest hardware for future-proofing.
  • SLEEK FUNCTIONAL DESIGN - Elevate your setup with a minimalist aesthetic that doesn't compromise on performance.

The MasterBox Q300L is a mini tower computer case designed for optimal airflow and aesthetic appeal. It features removable magnetic dust filters, versatile orientation options, and ample space for cooling solutions and hardware upgrades, making it an ideal choice for gamers and professionals alike.

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Specifications

Wireless Type802.11a
Number of USB 3.0 Ports2
BrandCooler Master
SeriesQ300L
Item model numberMCB-Q300L-KANN-S00
Item Weight1.06 pounds
Product Dimensions15.39 x 9.06 x 15 inches
Item Dimensions LxWxH15.39 x 9.06 x 15 inches
ColorBlack
DepartmentComputer Cases
ManufacturerCooler Master
ASINB0785GRMPG
Country of OriginChina
Is Discontinued By ManufacturerNo
Date First AvailableDecember 5, 2017

Have a Question? See What Others Asked

Does this case have USB 3 on the front io ports ?
Would the Corsair Hydro H100 x 240 fit in this case??
What size are the fans?
Does the case have room to comfortable mount a 3.5" HDD?

Reviews

4.4

All from verified purchases

T**S

Mastic cooler case

This case is really good. I use PC part picker and I highly recommend it for beginners but this case is very cheap if you can't afford a very expensive case and I had no issues I'm using it my pre-build as a home server to store all my stuff and so far it's been fine with temperature. What's good about this case? It's very small and compact and easy and it's not that heavy and the filters are easy to change.

J**M

✔ Awesome Little Case! (with a Few Small Flaws)

Having had a larger PC case for a while I thought it was time to move to a smaller option. I liked the look of the BitFenix cases but at around the £50 mark, the CoolerMaster Q300L was just what I was looking for price and design-wise.Being able to choose where the USB and power buttons are placed is a cool idea but if you want to use it at the top (like in my setup - Pic above) you will need a USB extension to run the cable down the back of the case.There's plenty of room for cable management and the build quality is good. I have a full sized HDD at the back and there's also space for two SSD's.Having all the holes means that you don't get much airflow pressure but I haven't had any heat issues with my overclocked AMD 1700X. If you're looking at having your PC on the floor, I woudn't choose this case as it'll most likely be full of dust in a few months. For desktop, I've had it running 4 months with minimal dust although you can see a slight dust ring around the front intake fan.When setting up be careful with any fluff and this will easily get stuck into magnet dust filter mesh.If you do decide to buy the CoolerMaster Q300L, you'll also need to invest in some fans as it only comes with one medium-volume fan. LED fans looks great and I've added three plus used the included fan as a front-intake.Pros✔ Cool Design✔ Build Quality + Cable Management✔ Removable Magnet Dust Filters✔ Compact SizeCons- Only One Fan Included- Perspex Window Tint Is Very Dark- USB Cables a little shortI also upgraded the CPU fan to a Arctic Freezer 7 Pro and there's plenty of horizontal room left. If you're going for a big CPU cooler, you might have to watch out with the clearance.Cheers,Jim!

G**K

Great for uatx but warps easily

Great design, good airflow, magnetic filters at front top and a removable filter with elastic pins on bottom. Plenty of space inside for 5 fans (I'm using an RX580, would fit a bigger GPU edit: changed to a RX 6800XT had to do some maneuvers to get it in but still fits) and for cable management. But the chassis build quality could be a bit better, got a lot of warping while screwing the fans and where the motherboard sits is a bit uneven, not a deal breaker for me as it was a recreational build. Overall very good looking and great price.

V**7

BEST COMPACT CASE

I was looking for something small for an ATX (later upgraded to MATX) motherboard board. Came across this pc case, its compact, unique and universal! What do I mean by that?The case can be placed almost any way! All the feet and the front panel can be rotated allowing case to be placed anyway! Even on its back as the back panel screws are also feet!Lots of YouTube videos I found before buying said thermals are really bad in this case, which has put me off but the size and the price were too good to pass up on. Using this pc case for almost 2 years, I haven't come across any thermal issues. I have stock AMD Wraith prism for CPU and GPU is also stock cooling. I do have 4 fans on the case 2 intake and 2 exhausts, thermals are around 60° when under load.It was a bit of a challenge putting everything in as my psu wasn't modular so more cables to hide, but the back side of pc has a lot of clearance allowing easier "tucking" in of cables.PS. Thought the back plate was too boring so I did a stickerboom on it and not regretting it ever so slightly!

A**T

Good Value Case (Amazon Resale)

The case came in good shape. Seem new

W**G

Case easy to work with, spacious and looks great. A+ to seller for quickly solving a minor problem

I used this for my first ever PC build; I am a wildlife photographer starting to venture into the world of wildlife videography; I built this PC for 4k video editing as my 4 year old laptop with an i7 processor and integrated GPU just wasn't up to the job, very frustrating to use. Spec for this build:- Asus Tuf B550M motherboard- AMD Ryzen 3600 CPU- Phoenix GEFORCE GTX 1660 super GPU- Corsair RM550x PSU- Western 500gb M.2 NVME primary drive- Seagate Barracuda 4gb storage drive- x3 Antec RGB cooling fans- BenQ 27 inch 4k monitorI have used Windows 10 home OS. All worked a treat and is absolutely rapid, handles the 4k editing and multiple large photoshop RAW files with ease. The case provided ample room for the above build with all cables neatly tidied away. I have space for a third 2.5 inch HDD/SSD should I require it in the future. Case looks great with the full open glass front displaying the build and RGB lighting.I don't often write reviews, however the seller was wonderful. The case originally came with one of the rubber feet missing. Not a huge issue, but all the same I wanted it to be right. I contacted the seller and within 3 days I had a replacement rubber foot in my postbox. Great service and all around a happy customer.

J**N

Case

My son loves it quick and simple buildLower mesh was easily bent and caught on carpet

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TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Cooler Master Masterbox Q300l Computer Case Magnetic Patterned Dust Filters | Desertcart KUWAIT