Cooler Master QUBE 540 ATX Mid-Tower PC Case, High Airflow, Tempered Glass
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Availability:
Only 1 left in stock, order soon!
Arrives
Sep 15 – Sep 26
Features
- Flexible Orientation Design Engineered to work seamlessly in both horizontal and vertical positions, with a reversible I/O panel and movable handles that let you customize layout, improve accessibility, and reposition the case effortlessly.
- GPU Compatibility Offers up to 415 mm GPU clearance w/o the front fan for full-size graphic cards, including RTX 5090 and RX 9070 XT.
- Motherboard Compatibility Supports ITX, ATX, and large E-ATX motherboards (up to 11" wide), all within a compact ATX form factor for maximum build flexibility.
- Mesh-Optimized Airflow Full front mesh panel maximizes ventilation for superior cooling under load, paired with a pre-installed SickleFlow 120mm fan for improved airflow.
- USB Type-C & Full I/O Connectivity The I/O panel includes 2 USB 3.2 Gen1 ports and a USB 3.2 Gen2 Type-C port, giving you fast and convenient front-access connectivity.
Description
The Qube 540 redefines DIY PC building with its beginner-friendly flat-pack design and fully customizable interior. This compact ATX case removes the limits of traditional layouts, giving you the freedom to create your ideal internal setup. It also supports 3D-printed external accessories, allowing you to personalize both the look and functionality of your build.
Brand: Cooler Master
Motherboard Compatability: ATX, Micro-ATX, Mini-ITX
Case Type: Mid Tower
Recommended Uses For Product: Business, Gaming
Color: Beige
Material: Stainless Steel, Tempered Glass
Power Supply Mounting Type: Multi-Position Mount
Cooling Method: Air, Water
Model Name: QUBE 540
Item Weight: 17.9 pounds
Supported Motherboard: ATX, Micro-ATX, Mini-ITX
Case Type: Mid Tower
Power Supply Mounting Type: Multi-Position Mount
Cooling Method: Air, Water
Total USB 3.0 Ports: 2
Other Special Features of the Product: Dual Orientation, Fully Modular, Reversible I/O Panel, Tempered Glass, USB-C
Compatible Devices: 140 / 280 / 360 mm Radiator Support, 3 x 120 mm / 2 x 140 mm Front, Top and Bottom Fan Support, 415 mm (w/o Front Fan) Graphic Cards Clearances, ATX | Micro ATX | | Mini ITX | E-ATX (up to 11" wide) Motherboard Support, ATX/ SFX PSU Support
Color: Beige
Enclosure Material: Stainless Steel, Tempered Glass
Antenna Location: Business, Gaming
Item Weight: 17.9 pounds
Item Dimensions D x W x H: 17.26"D x 8.86"W x 19.37"H
Brand: Cooler Master
Model Name: QUBE 540
Number of Items: 1
Manufacturer: Cooler Master
UPC: 884102134340
Model Number: Q540-MGNN-S00
Mfr Part Number: Q540-MGNN-S00
Warranty Description: 2 Year
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sep 15 – Sep 26
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This is a gorgeous and well built case and I LOVE IT, but it’s not simple, and has caveats. What you don’t pay in cash (it’s inexpensive) requires finesse and skill. Firstly, I am using a 1600W PSU (Asrock PG1600G) in this case as I am currently using a 5090 and intend to upgrade to a high power nova lake CPU when that comes out. This requires C19/C20 connectors to be safe. To get that working I had to expand out the power connector hole to C19/C20 size from C13/C14. This was doable with a manual nibbler and a file. I then also bought a silverstone C19 cable. PP16-2019D-80 on Amazon. It screws in fine with the existing holes, but you need to expand the hole to fit it. Then, with a 5090 Gigabyte Gaming OC and an NHD15 (I’m not crazy, I’ll replace this later when I go to Nova Lake), getting everything to fit was hard. Not as hard as my old Bitfenix Prodigy M 2022, but still tricky. Additionally, I noticed that the PSU just barely fits on top of the GPU when it extends out on the middle rail (I keep it on top for now, but will need the middle rail for a 360mm AIO in the future). The official 5090 gigabyte stand is also incompatible with the case. I had to buy an aftermarket stand after realizing that my nhd15 was in the way when using a cooler master v3 vertical mount bracket. There is an included vertical bracket as well that might have worked, but I decided to skip it as my 5090 GPU is so heavy and I figured it wouldn’t properly support it. The case was also unforgiving when I made screwing errors. I had to take a lot apart when I didn’t do it in the right order. It was also unforgiving when I cut out the mesh (dust filters) for the holes in the case. Advice, use scissors, not your hands for the dust filter cutting work. I have a small tear in the wrong place on the filter after using my hands. It’s not super noticeable now with it on my desk and the unnecessary tear hidden under the front panel, but it’s unfortunate. There’s also an unfortunate matter of not getting a rail or mounting equipment in the box for a front fan. To add a front fan with a front PSU, you’ll have to get a mount 3d printed. Regardless, that final result on my desk. YUM!!!! Also nice and cold with primary intake on bottom and outtake on top and back (with PSU intake as well in front, even without front fan right now). So yeah, a lot to think about, but so worth it :).
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Reviewed in the United States on August 3, 2026 by Jessica C
I really like the design and the compact, industrial look. The catch is the build itself. This is not a traditional case. You have to plan your whole build before you start screwing in parts, because orienting and ordering the components is the tricky part. If you're a beginner, stay away. If you're a seasoned builder, it's perfect. PSU support for ATX and SFX. The case itself doesn't weight like a cheap case. It feels premium solid aluminum. It rewards people who love to tinker and don't mind pulling the machine apart for maintenance. I added a fan hub running off the CPU fan header and had no issues. Tons of configuration options. You get two fans/AIO brackets. One fits two 120mm fans, the other fits three 120mm fans. It comes with one black 120mm fan on the back for exhaust. I ran mine with five additional 120mm fans for a total of six 120mm fans. My set up is for a chimney effect, three intake at the bottom, two exhaust up top, and I left the included rear fan as exhaust right where it came. Airflow is excellent since the whole case is essentially open. The trade-off is dust, it gets dirty fast. If you have pets, vape, or live in a dusty environment, expect frequent teardowns for cleaning, even with the filters in. The filters aren't easily removable either. You have to unscrew the fan brackets to get at them. On exhaust fans I'd skip the filter entirely. Heads up on the colors! Cooler Master mislabeled them. "Beige" is actually charcoal, and "charcoal" is actually beige. Go off the product photo, not the name. This is misleading and I suspect it's behind a lot of the returns on this listing. I don't have a 3D printer so I can't test the 3D printer options for this case. But it dose include a white headphone holder to attach to the case. Browsing around in printables 3D files there's a lot of useful attachments. Bottom line this is not a beginner case, but if you like building and maintaining your rig, it's a great pick.
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Reviewed in the United States on June 21, 2026 by Alex
The Qube 540 is an excellent case with so many options for how to configure it. The handles significantly help me transport it between college and home, at a far cheaper price than alternatives with a handle, such as the Mechanic Master C34 ($200 at the time of this review). The case includes a headphone stand which can be clipped into any of the holes. While this case is sleek and nice, it is also extremely difficult to cable manage, as there is very little space and no power supply enclosure. However, once it's built, it looks clean like a Mac Pro.
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Reviewed in the United States on July 18, 2026 by Aidan Shepherd
This case is really nice for the price but it does have its setbacks. I’ve built in a handful of cases and this one is different. I bought this case to fit all of my old components but briefly considered using it as my new case. I only did not due to complications. 1. Small for a full size motherboard 2. PSU mounts on front side 3. Fan set up gets complicated 4. Cable management is harder due to no case bottom You could work around these however, you would need to plan it out. A modular psu is highly recommended! 360 coolers or fan set ups can be mounted on top and not really anywhere else. If you do go with the 360 radiator on top you will have a hard time mounting the psu and fitting the front header at the top of the case. Luckily, you can insert the front header in a number of other positions but this was a head scratcher. Using a full size board is doable but you will restrict your ability to place the psu on the bottom since the board will take up the height of the case. Also the header include usb type c which is great but make sure your mobo can support this connection or use an adapter. The case itself looks and feel premium. I am going to be doing a 360 fan set up on the top and using a couple 120 or 140 for the bottom. Overall, this case looks great but it is not a beginner case to build in.
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Reviewed in the United States on May 31, 2026 by Salvador
I've owned a lot of PC cases through the years, and this one is definitely one of the nicest. The fit and finish is excellent, and it's very sturdy. There is a lot of flexibility in how to set up the internals, and I was able to easily fit a dual Xeon ATX board in with plenty of room to route cables and install a full load of PCI-E cards and multiple SSDs and an HDD drive. Ventilation is excellent - I built a workstation, not a gaming rig, so I am not taking advantage of the top and bottom fan mounts, but it's nice to know I can if needed.
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Reviewed in the United States on January 30, 2026 by Sean Brumwell
I’ve built in this case 3 times so far and it’s a good buy. When it come to cable management it’s kinda non existent but it works for the price and air flow and style of this case I like it! Only biggest grip with the case is cable management… it’s really not there lol but it’s a good case sturdy build looks good ( keep in mind these are office PCs) and are good to build in pair them with some infinity mirror fans and it looks way stronger then it is. If you’re looking at this case it’s worth the build I got mines when they were close to about $60. Well worth the money and looks.
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Reviewed in the United States on August 2, 2026 by martin g. price jr.
I like the case but the internal AC cable is non-functional. I built this out and got no power. I put in a known good and a brand new PSU, no power. I got a PSU tester and tested it with and without the internal power cable, PSU tests fine connecting directly, no power when using this internal PSU cable.
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Reviewed in the United States on June 2, 2026 by David Antell
I was on the fence about this case due to fitment issues from others, but it fit my setup just fine with some room! Full size atx psu, and the longest 3070ti made, and I can still have a fan in front under the psu.
Reviewed in the United States on July 27, 2026 by Jross