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Best PC case for RTX 5090 in 2025 – our top choices

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Best PC case for RTX 5090 in 2025 – our top choices
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Nvidia is starting the year with a whole new generation of graphics cards. Bringing Blackwell to the gaming market, there’s plenty of power and excitement to what it offers. If you’re building an RTX 5090 gaming PC, you’ll want to make sure that you’ve got all the best components, and that very much includes the PC case you go for too.

If you’re considering buying a 5090, the size will be one of the significant considerations. Now Nvidia’s GPU (the Founder’s Edition) has a length of 304mm and a width of 137mm, making it a 2-slot card. So, it may not be the most difficult to install. That being said there are plenty of RTX 5090 AIB graphics cards also that come in various shapes and sizes, especially with brands such as Gigabyte, MSI, and ASUS.

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We’ve picked some cases that are worth pairing with the RTX 5090, based on its dimensions. Most times, it is smaller MATX cases that might struggle to fit the longer cards in, so, be sure to double-check GPU length compatibility before you settle for your option.

You could, of course, skip the process entirely and go for one of the RTX 5090 prebuilt gaming PCs, but we’ll leave that decision to you!

  • Lian Li O11Vision Compact White
    Best case for RTX 5090 overall

    Lian Li O11Vision Compact White

    • Size: Mid Tower
    • Motherboard Compatibility: E-ATX/ATX
    • Max GPU Length: 408mm
    • I/O: 2 x USB 3.0, 1 x USB Type-C, 1 x audio jack
    • Fan support: Mesh mode: 11 x 120mm or 2 x 140mm and 8 x 120mm Vision mode: 8 x 120mm
  • Cooler Master MasterBox Q300L
    Best mATX case for RTX 5090

    Cooler Master MasterBox Q300L

    • Size: Micro ATX
    • Motherboard Compatibility: MATX
    • Max GPU length: 360mm
    • I/O: 2 x USB 3.0
    • Fan support: Top: 2 x 120mm, Rear: 1 x 120mm, Bottom: 1 x 120mm, Front: 2 x 120mm or 140mm or 240mm radiator
  • Best airflow case for RTX 5090

    CORSAIR 4000D AIRFLOW Tempered Glass Mid-Tower ATX Case

    • Size: Mid-Tower
    • Motherboard Compatibility: ATX
    • Max GPU length : 360mm
    • I/O: 1 x USB 3.1, 1 x USB 3.0, 1 x audio in/out
    • Fan support: Top: 2 x 120mm or 140mm fans, Rear: 1 x 120mm fan, Front: 3 x 120mm, 2 x 140mm
    • Radiator support: Top: 1 x 280 or 240mm, Rear: 1 x 120mm, Front: 1 x 280 or 360mm
  • A sleek black CORSAIR 7000D AIRFLOW computer case on a clean white background.
    Best full tower case for RTX 5090

    CORSAIR 7000D AIRFLOW

    • Size: Full tower
    • Max GPU length: 450mm
    • Motherboard compatibility: ITX, mATX, ATX
    • I/O: 4 x USB 3.0, 1 x USB 3.1 Type-C, 1 x 3.5mm headphone/mic jack
    • Fan support: Top: 3 x 120mm or 140mm, Front: 3 x 120mm or 140mm, Rear: 1 x 120mm or 140mm
    • Radiator support: Top: 1 x 360mm or 420mm, Front: 1 x 420 or 480mm, Rear: 1 x 120mm or 140mm

How we picked

To compile this list, we searched all over, finding the top picks from the most trustworthy and popular brands. Looking over reviews and several factors to pick out some of the top picks that suit the RTX 5090. Primarily focusing on size compatibility, allowing for a GPU length of 360mm to accommodate the Nvidia GPU. We review each pick in detail to ensure you can make the best decision for your build.

Our top picks

Best overall
  • Lian Li O11Vision Compact White
Specifications
  • Size: Mid Tower
  • Motherboard Compatibility: E-ATX/ATX
  • Max GPU Length: 408mm
  • I/O: 2 x USB 3.0, 1 x USB Type-C, 1 x audio jack
  • Fan support: Mesh mode: 11 x 120mm or 2 x 140mm and 8 x 120mm Vision mode: 8 x 120mm

At the top of the list is the Lian Li O11 Vision Compact, which comes in both black and white.

With an open aquarium-style look, it shows off your build in all its glory, along with hiding the majority of connections and keeping it clean with a dual chamber design. This case does a good job of concealing any of the less ‘attractive’ parts of your setup, allowing you to keep your setup looking visually clean and appealing.

As for cooling, it doesn’t come with any pre-installed option and allows you to fill it out yourself with the ones you want. Instead, it has the space to fit in three 120 or two 140mm fans on top, three 120mm fans on the side, three 120mm on the bottom, and two 120mm fans on the rear, along with up to 360mm radiators on the top, side, and bottom.

Most importantly, it supports up to a 408mm GPU length at max that can cover the FE cards and, most likely, all partner models. It also supports a 164mm CPU cooler height if you opt for a tower solution. The storage options facilitate two SSDs and another two SSDs or HDDs.

It also offers personalization and versatility, with vision or mesh options for the top panel. So, you can install an AIO on top or have more glass to peer into the case. For the IO, you can have a power button, two USB 3.0, one USB C 3.1, and an audio port.

What users say

There are plenty of reviews to go by, as the Lian Li O11 has 319 ratings on Amazon with an average of 4.7 stars and plenty of options. One of which is Foxpwr, who says, “This case is it. This is the endgame case I have been looking for. Lian Li made this extremely easy to assemble as you can pretty much, take any piece out of the case so that you may install your fans, AIO, and motherboard.”.

Best mATX
Cooler Master MasterBox Q300L
Specifications
  • Size: Micro ATX
  • Motherboard Compatibility: MATX
  • Max GPU length: 360mm
  • I/O: 2 x USB 3.0
  • Fan support: Top: 2 x 120mm, Rear: 1 x 120mm, Bottom: 1 x 120mm, Front: 2 x 120mm or 140mm or 240mm radiator

Another option is if you want something smaller, then there are micro-ATX cases you can consider to fit an RTX 5090. One of which is the Cooler Master MasterBox Q300L. With GPU support lengths up to 360mm, it can easily fit the FE version of the card, with many of the AIB options also being small enough to fit. So, if you want a smaller overall build, the MATX option minimizes the overall volume it takes up.

It is also very modular with a moveable I/O panel, so you can move which side of the body it is installed on. This panel has two USB 3.0 ports, along with audio in and out, as well as power and reset buttons. You can also move the feet, making it quite a flexible building solution.

The Q300L also offers a lot of mesh and open sides to keep the airflow in a good state. Make sure your components get all the air they may need for cooling. With the sides meshed up, it’s the sides that get the acrylic panel treatment and show off the internals.

It comes with one preinstalled 120mm fan in the rear. The top has space for two 120mm fans, with the front capable of fitting in two 120/140mm fans or radiators. All of that comes in a very affordable price too, so you can afford that 5090 and put more budget towards other parts.

What users say

It’s not just us praising the case, either. The reviews on Amazon have a similar story, considering the case has an average rating of 4.5 stars from over 13,000 ratings. One of the reviews on the case from Trevor states, “Cost friendly, light weight, excellent airflow, fits everything great. The mesh style walls makes it easy to place fans however you would like. Liquid coolers fit perfectly. Wire management is great with these cases. Super easy to feed wires, easy to disassemble and reassemble. I've built 10+ computers as budget friendly builds for people in my area using these and could not be more satisfied. 10/10 recommend!”.

Best airflow
Specifications
  • Size: Mid-Tower
  • Motherboard Compatibility: ATX
  • Max GPU length : 360mm
  • I/O: 1 x USB 3.1, 1 x USB 3.0, 1 x audio in/out
  • Fan support: Top: 2 x 120mm or 140mm fans, Rear: 1 x 120mm fan, Front: 3 x 120mm, 2 x 140mm
  • Radiator support: Top: 1 x 280 or 240mm, Rear: 1 x 120mm, Front: 1 x 280 or 360mm

The Corsair 4000D Airflow, a particularly well-known and solid option for a PC case. It’s renowned and has been around for a while, offering a strong performance for airflow and still looking great doing so. With a sturdy build too, it offers a great building experience and feel to get it up and running.

It can fit GPUs up to 340mm if you have a front-mounted radiator and fans or 360mm with a top-mounted one instead. The case supports up to a 360mm radiator along with 280 and 240mm ones at the front. As for fans, it can have two 120/1400mm ones on top, three 120mm/ two 140mm in front, and one 120mm at the rear. So you can fill it up with plenty of cooling capacity for your system and improve airflow.

This PC case also comes with two 120mm AirGuide fans that use anti-vortex vanes, which basically means the air is turned into a cone-like shape, increasing its reach and resulting in better cooling. You can mount these fans anywhere in the case and paired with other fans, it should result in a power and efficient draft through the PC keeping your RTX 5090 and other components cool.

Besides that, it can accommodate two 2.5″ SSDs and 3.5″ HDDs. So, after you’ve maxed out the storage capacity using the m.2 slots on your motherboard, you can increase the storage by installing SSDs, meaning you don’t have to worry about running out of space.

For the IO at the top, you have a slim picking of one USB 3.0, one USB 3.1 type-C, an audio/microphone jack, and a reset and power button. For the storage slots, it has two 3.5mm sleds and two 2.5mm mounting points for a decent amount of expandability.

What users say

With over 17,000 ratings on Amazon, the case averages 4.7 stars out of 5, making it a well-received product. One of these reviews highlights some of the best features, as Isaac writes:

“Intuitive Cable Management: The case features CORSAIR's RapidRoute cable management system, which simplifies routing cables and keeps your build looking clean and organized.

Spacious Interior: With support for full-size ATX motherboards, large GPUs, and multiple storage drives, the 4000D AIRFLOW accommodates powerful builds with ease.

Tool-Free Installation: Installing components is straightforward, thanks to tool-free drive bays and an intelligently designed layout.”

Best full tower case for RTX 5090
04
A sleek black CORSAIR 7000D AIRFLOW computer case on a clean white background.
Specifications
  • Size: Full tower
  • Max GPU length: 450mm
  • Motherboard compatibility: ITX, mATX, ATX
  • I/O: 4 x USB 3.0, 1 x USB 3.1 Type-C, 1 x 3.5mm headphone/mic jack
  • Fan support: Top: 3 x 120mm or 140mm, Front: 3 x 120mm or 140mm, Rear: 1 x 120mm or 140mm
  • Radiator support: Top: 1 x 360mm or 420mm, Front: 1 x 420 or 480mm, Rear: 1 x 120mm or 140mm

The last PC case on our list is the big brother of the Corsair 4000D Airflow, the Corsair 7000D Airflow. This case offers a higher capacity for installing fans and radiators. More specifically, you can mount three 120 mm or 140mm fans on the top and front and one 120mm or 140mm fan in the rear. However, you can also mount one 360 or 420mm radiator on the top, one 420 or 480mm radiator on the front, and one 120mm or 140mm fan in the rear.

This means that you can install fans and radiators in plenty of ways for optimal cooling performance. It also has a 450mm max GPU capacity, and the RTX 5090 has a length of 304mm. Even if you get a third-party 5090, you shouldn’t be short on space, as 450mm is more than enough to comfortably house this gaming behemoth.

It can also support ITX, mATX, and ATX motherboards, meaning that you can mount your RTX 5090 on a smaller motherboard, which generally costs less, without worrying about compatibility issues. Regarding connectivity options, it features four USB 3.0 and, one USB 3.1 Type-C, and one audio jack. So, you can connect various peripherals directly with this card, which makes it better as you don’t have to reach around the back of the case to access the ports on the motherboard.

Overall, this is one of the best cases for RTX 5090, and it even comes with a three-slot vertical GPU mount if you plan on changing things up a bit. Cable management is also easier in this case due to the rapidroute cable management system. It can also hold four 2.5” SSDs and six 3.5″ HDDs, which is much more than the capacity offered by the 4000D.

What users say

According to Amazon reviews, this case has plenty of room, excellent build quality, and airflow. One reviewer said: “This has been my favorite case ever to build in. It’s just … easy. Cables are truly manageable. The hinged sides are great. The ability to customize is beautiful. You can add so many drives or remove the bays entirely. Tons of options for cooling. Lots of room for airflow.”

How to pick the best case for the RTX 5090

Picking out the best case for RTX 5090 can be pretty tasking, but we’ve narrowed it down to a few of the best options and highlights we thought you should consider. But otherwise, if you’re thinking about what to look out for, we have a couple of core factors to consider.

Size compatibility

The first of which is the size of the case supports. The RTX 5090 is not as big as some of the 4090s we’ve seen, but it can still be quite a big factor. The FE comes with a length of 304mm and only a dual slot, so, for the most part, it might not make too much difference. You just might find some of the partner cards coming in quite a bit bigger, and it’s best to double-check that they will actually fit in.

Design

Another factor is how it will look and how well it’s designed. Make sure it fits right into your workspace and where you’re planning on placing it. But also that it looks nice, as it might be sitting there for a while holding all your parts in there; you will be looking at it for a good minute, so it best to pick a part that you enjoy and will last for that time.

Cooling

Another factor is to make sure it has enough cooling capacity. You don’t want to restrict airflow to your system, so let it all thrive with plenty of cool air flowing into it. This ensures your GPU and CPU can perform at their best without being throttled while keeping the temperatures in check.

About the Author

With a fascination for technology and games, Seb is a tech writer with a focus on hardware and deals. He is also the primary tester and reviewer at BGFG and PCGuide.