















❄️ Cool, Clean & Cutting-Edge: The Micro-ATX Case That Means Business
The Cooler Master Q300L V2 White is a versatile Micro-ATX tower designed for professionals and gamers seeking a compact yet spacious case. It supports Micro-ATX and Mini-ITX motherboards, high-end GPUs up to 360mm, and advanced cooling options including up to five fans and a 240mm liquid cooler. Featuring a modern magnetic patterned dust filter, USB 3.2 Gen 2x2 Type-C port, and a premium tempered glass side panel, it combines superior airflow, easy cable management, and sleek aesthetics for a high-performance, future-proof build.

















| ASIN | B0CXH9PY82 |
| Antenna Location | Business, Gaming |
| Best Sellers Rank | #116 in Computer Cases |
| Brand | Cooler Master |
| Case Type | Mini-Tower |
| Color | White |
| Compatible Devices | CPU Coolers Max Height 159mm, GPU Max Length 360mm, Micro-ATX Motherboards, Mini-ITX Motherboards, Up to 240mm Liquid Cooler |
| Cooling Method | Air |
| Customer Reviews | 4.4 out of 5 stars 381 Reviews |
| Enclosure Material | Metal, Plastic, Tempered Glass |
| Global Trade Identification Number | 00884102118487 |
| Hard Disk Form Factor | 3.5 Inches |
| Internal Bays Quantity | 2 |
| Item Dimensions D x W x H | 15.2"D x 9.1"W x 15"H |
| Item Type Name | Gaming Case |
| Item Weight | 11.68 Pounds |
| Manufacturer | Cooler Master |
| Material | Metal, Plastic, Tempered Glass |
| Model Name | Q300L V2 White |
| Motherboard Compatability | Micro ATX |
| Number of Fans | 5 |
| Other Special Features of the Product | CPU Coolers Max Height 159mm, Edge-To-Edge Tempered Glass, GPU Max Length 360mm, Magnetic Patterned Dust Filter, USB 3.2 Gen 2x2 Type C Port 20GB/s |
| Power Supply Mounting Type | Bottom Mount |
| Recommended Uses For Product | Business, Gaming |
| Supported Motherboard | Micro ATX |
| Total Expansion Slots Quantity | 4 |
| Total USB 2.0 Ports | 2 |
| Total USB 3.0 Ports | 2 |
| Total Usb Ports | 2 |
| UPC | 884102118487 |
| Warranty Description | 2 Years |
M**R
Perfect All-arounder!
Super easy to build in. Small, but spacious enough to accommodate most tower coolers and GPUs. Cable management is alright. Also, the glass is actual tempered glass now, so it's build quality feels more premium now (compared to the previous version). I upgraded my son's PC and needed better airflow as the previous case he had was not cutting it. After the swap, the PC looks miles better..airflow improved significantly (fans no longer on full blast constantly). Would definitely purchase again. PS to cooler master- You should make custom magnetic dust filters with graphics or patterns 👀
P**N
Excellent product and deal!
Really don't understand why this case gets some negative reviews. IT'S PRACTICALLY PERFECT in its design. I have the build finished and its a nice tight build with great airflow. I bought good fans... and calibrated them. I then hardwired in the fan that came with the case down low beside the PSU and the airflow is excellent. The porous case is genius, and the metal mesh filters magnetic are genius. Practicality matters this is a great case. The thin metal tin for the back should be a little thicker but it installed easily and works great. Maybe one more USB c on front? Price point is perfect you can't get a better deal! Glass wall is now the top surface you can set this up like other cases or lay it down on its side... bigger supports four on bottom maybe a little bigger? Excellent product and deal!
N**.
Great Case at This Price Point
I know this case divides opinions but I am a big fan. I like the relatively simple look of it. The pattern of circles shown in the main photo for the item is actually a pattern on the mesh sheet; underneath, the metal itself has many small holes. The case is pretty difficult to work in as the glass panel is your only real access point, but it was entirely manageable. I had to bend the rear GPU bracket back just a bit to accommodate my RX6600XT, but no big deal there either. The rear channel for cable management is a great addition, and the case itself has a nice paint/build quality. The thermals for this case are excellent. Under worst stress conditions, I have not gotten anywhere close to thermal limits. HOWEVER: Note that a 240mm AIO will NOT fit on the top of the case; with the motherboard installed, the RAM will interfere with the AIO. I was able to install mine at the front of the case (make sure you do this with the radiator tube side down), but keep in mind that the thickness of your AIO will then cut into your CPU clearance. Generally, AIOs are around 50mm thick, so the 360mm GPU space becomes more like 310mm. Also, bear in mind that the case only comes with 1 fan, but fans are cheap so this is not a big deal. I installed two 120mm fans on the top of the case, kept the single fan on the rear, and installed one 120m fan on the bottom next to the power supply. This makes for excellent airflow, and the removable mesh panels make it very easy to manage dust. Can't beat this case for the price!
P**P
Great budget case but filters make it slippery to handle
I wanted to make a 2025 Windows 7 sendoff PC using "legacy" hardware. This sub $50 mATX case was perfect to house a i7-4790 and GTX 970 and 240mm AIO cooler easily. All the holes on this case are in the perfect layout to fit 120mm/140mm fans really in any spot you need them. There is plenty of zip tie points on the back, enough cable management room for a cheap non modular power supply. The only gripe i have with this case is all 3 sides that you pick the case up from have magnetic dust filters. The case almost slipped out of my hands because of this. I applied painters tape to the bottom PSU filter to help with handling it better. Overall i'm happy with this case for the price bracket.
M**H
Compact case
This is an excellent overall case for low budget, plenty of space for a MiniATX mother card and a RTX 5080. I only have 2 intake at the front, and 1 outtake fan on the back and temperatures are super low. 66 max for the GPU and 58 max for de CPU (Ryzen7 7700x).The easy removal of the both panels is good. And this new version coming with tempered glass!
N**I
Doesn't seem too different from original version, but it's great either way.
Great quality especially for the price. Micro ATX fits well and it supports several drives while also supporting lots of cooling options while the removable filters keep it fairly clean inside. Very sturdy build with lots of options for upgrades later.
J**.
Worth it
Nice case for the price. Very simple , good airflow, a bit flimsy but it’s fine if you’re not moving it around a lot would definitely buy again
Y**.
Not a bad case for a budget build .
It's cheap, has decent build quality, easy and enjoyable to build in . Has tempered glass, and not a bad looking case . This case wasn't designed for high TDP hardware . People spend hundreds of dollars on CPU, Motherboard, GPUs, and totally cheap out on a case, then complain about airflow and thermals .... I don't like the fact that it doesn't have a basement, the mesh panels are meh and feel a bit restrictive , I'm also not a fan of the thumb screws on the side panels . It feels like a hassle to get in and out of the case . The included fan is cheap plastic garbage . Invest in higher quality fans . Overall, it's not a terrible case if you have low TDP hardware and you're willing to sacrifice some creature comforts for price . Great for low end budget builds