Best Case for RTX 3090

The Nvidia RTX 3090 is slightly larger than most high-end graphics cards available in the market, making users confused about what casing to choose with it. This graphics card needs good airflow in the casing so that all of its components get cool down and you can enjoy a great gaming experience. We’ve reviewed some of the best case for RTX 3090 that are worth considering in 2022. The Lian Li O11 Dynamic XI is a considerable case for most users as it has enough room to install your RTX 3090 and other components.

Our Top 3 Recommendations

Best Pick Corsair 5000D Corsair 5000D

Lots of tempered glass on the sides.

Side air intake for better airflow.

Very easy to work on.

Most Popular Fractal Design Meshify 2 Fractal Design Meshify 2

Excellent cooling support

Budget Pick Lian Li O11 Dynamic Xl Lian Li O11 Dynamic Xl

The Aluminum chassis and glass panels make an excellent combo.

Great set of IO options on the front panel.

Can house up to three 360mm AIOs.

The Cougar Conquer is also included in the list, a unique casing for gamers and is loved by the gaming community. If you prefer aesthetics and premium looks, there is an excellent option for you, like NZXT H510, but as you host a flagship graphics card on it, I suggest you get the NZXT H710i. We’ve got many best cases for 3090 below and a buying guide with some other information you need to know before buying a computer casing. If you are looking for the best motherboard for RTX 3090, we’ve made a dedicated guide, so don’t forget to check it out.

The dimensions of RTX 3090 are (313mm x 138mm x 55mm), but this may be different depending upon which vendor you are using. All of the casing below are tested with a few popular vendors of RTX 3090, and I’m pretty sure that you will not have any problem installing your graphics card on these RTX 3090 cases.

Best Case for RTX 3090 Summary

Award Image Model Price
Best Airflow Case for RTX 3090 Corsair 5000D Corsair 5000D See On Amazon
Best Overall Case for RTX 3090 Fractal Design Meshify 2 Fractal Design Meshify 2 See On Amazon
Best PC Case for RTX 3090 Lian Li O11 Dynamic Xl Lian Li O11 Dynamic Xl See On Amazon
Best Large Case for RTX 3090 Phanteks Eclipse P500A D-RGB Phanteks Eclipse P500A See On Amazon
Best Mid-Tower Case for RTX 3090 Rog Strix Helios GX601 Rog Strix Helios GX601 See On Amazon
Best Enthusiast Case for RTX 3090 Cooler Master MasterBox TD500 Cooler Master MasterBox TD500 See On Amazon
Best Looking Case for RTX 3090 NZXT H710i NZXT H710i See On Amazon
Best Unique Case for RTX 3090 Cougar Conquer Cougar Conquer See On Amazon

Best Case for RTX 3090 At a Glance:

Best Case for RTX 3090 Reviews

Corsair 5000D (Image credit: Amazon)

Corsair 5000D

Best Airflow Case for RTX 3090


Lots of tempered glass on the sides.

Side air intake for better airflow.

Very easy to work on.

Aesthetically appealing looks.


Must need extra fans to get over the 4000X.

A bit expensive.

Corsair 5000X was one of my favorite cases for looks, but when you are considering performance, there is a cousin of this case named Corsair 5000D. It might not be as good as the 5000X in terms of looks, but the clean and simple design makes it aesthetically appealing. The steel front panel with lots of air vents makes it excellent for cooling and gives exceptional airflow inside the case.

We gave this case the best airflow case title because it supports up to 10x 120mm fans, while 4x 140mm fans are more than enough for any mid-tower case. One more thing we’ve found better, in this case, is the cable management, as there is 25mm space behind the motherboard tray, which hides all of the necessary cables through a hinged steel door and doesn’t affect the looks of your build.

All from a single 4-pins PWM fan header, a bundled fan controller connects up to six fans and two Corsair AirGuide 120mm fans. The controller allows you to reduce the fan speed when you want quiet operation or increase the fan speed when you want the performance. One fan is installed on the backside, while the other is installed on the front to cool down the graphics card. There should be one 140mm fan on the front side for much better cooling.

You can install one 120mm fan on the rear, one 360mm radiator on top for push/pull, one 360mm on the side, and one 360mm on the front. Two 140mm fans can be installed on the front and topside. Four 2.5' SSDs can be installed on the top side, while two 3.5' HDDs can be installed in the drive cage. The front of this case doesn’t have IO ports while they are on the top with power and reset buttons, USB3 ports, and a headphone/mic jack.

This case comes with a vertical GPU mount bracket and screws bundled in the box for vertical graphics card mount mount mount, but you need to buy the Corsair PCIe x16 3.0 cable separately. This case is quite expensive, but not for a flagship graphics card like RTX 3090. The side panel is heavily tinted, and it will be hard to see inside if there are no RGB fans. Also, the power supply can’t be installed from the rear side.

Fractal Design Meshify 2 (Image credit: Amazon)

Fractal Design Meshify 2

Best Overall Case for RTX 3090


Excellent cooling support


Bulkier design.

Fractal Design cases are well known for their affordable price and lightweight design, and the one we’ve there is a true example of it. The angular mesh on the front and open design layout maintain the airflow inside the case. This case has two variants; one comes with metal sides while the other has tempered glass on the left side. The price difference between them isn’t much, so getting the tempered glass variant will be better.

The front of this case is complete mesh, while the IO ports section is located on the top, which contains the two USB3 ports, one USB3 Type-C, headphone and microphone jack and power/reset buttons. The top supports three 120/140mm fans with a dust filter or 120/240/360mm or 140/280/420mm radiator. The dust filter comes with magnetic strips, making it easy to install or remove for cleaning purposes.

There are seven expansion slots on this case, meaning that it can house any of your ATX motherboards. While for vertical graphics card mount, there are two additional vertical expansion slots. Both sides have tool-less push-to-lock side panels that are easy to remove and install. It has space for 3x 120/140mm fans on the front while 2x Dynamic X2 GP-14 come pre-installed, 2x 120/140mm fans on the bottom and 1x 120/140mm fan on the rear.

There are 3x universal bay drive brackets which can house both 3.5-inches and 2.5-inches drives, and 4x dedicated 2.5-inches drive brackets. The cable routing space behind the motherboard tray on this case is 23mm so that you can hide all of your cables and make your build aesthetically appealing. The power supply unit clearance of this case is 300mm so that you can install any potent PSU for your RTX 3090 graphics card.

The lower compartment of this case is quite difficult to access, and if you are a non-tech guy, you need to check out the manual. In our sample product, the screws on this case are overtightened. There are bundled fans that come with this case, but it lacks the integrated controller, so you may need to go with an aftermarket fans controller. The weight of this case is much heavier than the other casings of this size.

Lian Li O11 Dynamic Xl (Image credit: Amazon)

Lian Li O11 Dynamic Xl

Best PC Case for RTX 3090


The Aluminum chassis and glass panels make an excellent combo.

Great set of IO options on the front panel.

Can house up to three 360mm AIOs.

E-ATX motherboards are supported out of the box.

Magnetic intake dust filters overall fans.


Most board don’t come with multiple USB 3.0 headers or lacks a USB 3.1 Type-C header.

A few more Velcro strips will be good.

Lian Li O11 Dynamic Xl is slightly expensive but targeted towards enthusiast and made for those users who wants nothing but the best. This case didn’t get much attention when it was released, but it came into the mainstream when Lian Li collaborated with an overclocker in Germany, Der8auer. Based on our reviews and experience, it’s the best airflow case for RTX 3090 because of its spacious size.

It’s a mid-tower case made up of mostly steel and aluminum, but there is also a lot of tempered glass on this case, making it aesthetically appealing for RGB builds. The left side is complete tempered glass, while the front has 80% tempered glass while the rest 20% has IO ports. The front tempered glass might be good for RGB lovers, but for performance users, You can install E-ATX motherboards on this case with the bundled mounting bracket, and motherboards like ROG Dominus Extreme can also be installed on it.

There is a single 120mm fan support on the backside, the top and the bottom side have 360mm and 280mm radiator support, and the side has 360mm AIO support. Even the front doesn’t have fan support, but there are enough cooling options, in this case, making it the best in this category. This case is flexible, and you can consider it for any configuration because of the hot-swappable parts, making it easy to install or remove hardware.

Considering this case for multiple graphics card configurations, you will love it because of the dual power supply unit support. However, you may need to remove the hard drive cage to make a secondary power supply space. The graphics card clearance is 446mm, meaning that you can easily install any aftermarket RTX 3090 graphics card. A vertical graphics card mount bracket is also sold separately for vertical GPU mount.

The front side has a lot of ports, two USB3 ports on the top IO panel and two on the case feet; there is one USB 3.1 Gen2 Type-C, headphone and microphone jack, and a power button. Most motherboards don’t come with multiple USB3 headers, while some don’t come with a USB 3.1 Gen2 Type-C header. Overall this case is amazing for large-sized GPUs like RTX 3090, but we’ve also recommended it for RTX 3080 because of its features.

Phanteks Eclipse P500A D-RGB (Image credit: Amazon)

Phanteks Eclipse P500A D-RGB

Best Large Case for RTX 3090


Good thermals.

Great cable management.

Supports second ITX motherboard.


Too big for simple builds.

No dust filter on front.

The Phanteks Eclipse P500A is the biggest airflow case from the company as it can host up to two motherboards which is quite interesting for a mid-tower case. You have to buy $20 accessories for this casing, and with them, you will be able to fit an ITX motherboard on the top. There are different variants of this casing, where some are targeted for performance while some are for aesthetics, and we will discuss all of them.

You can get the cheapest variant of this case for under hundred bucks, and it offers two 140mm fans with no RGB lights. While if you prefer aesthetics, you can put $30 more and will get three D-RGB fans, a D-RGB lightning strip, and the power supply unit shroud. If you prefer performance, I would recommend this as the best PC case for RTX 3090 because of its size and features.

There are seven expansion slots on this case, meaning that you can install any ATX motherboard on it. At the same time, there are three vertical expansion slots for vertical graphics card mount. The graphics card clearance is around 435mm, which is more than enough for any aftermarket RTX 3090 graphics card. The maximum power supply length should be 250mm, or under it; otherwise, you will have a clearance issue.

Like the P300A and P400A, this case also comes with front mesh, and the company explains how the mesh wraps the front side and increases airflow. It lacks a dust filter on the front side, so the company’s primary focus is performance. This increases the airflow in the case, but dust will be a problem for you, and you need to be a little more diligent about cleaning the case.

The big size is good for more of the users considering it for RTX 3090, but those making simpler builds will have problems with its size. You can install a 360mm radiator on the front, 140mm fan on the rear side and 3x 120mm fans on the top side or 140mm fans on top. There are 10x 3.5-inches slots for storage drives and 3x 2.5-inches drives, while there are 2x brackets.

Rog Strix Helios GX601 (Image credit: Amazon)

Rog Strix Helios GX601

Best Mid-Tower Case for RTX 3090


Graphics Card support bracket included.

Lots of RGB with Aura Sync.

Option for vertical graphics card mount.


Slightly heavy in weight.

Carry handles are impractical.

Only two slots for 3.5″ drives.

ASUS Rog Strix name is everywhere: graphics card, power supply unit, motherboard, or even the computer case. The Helios GX601 is a premium case in the series designed for enthusiast-class users to showcase their gaming builds online. Ít’s a mid-tower gaming case with three tempered glass panels, an aluminum frame, and RGB lights on the front panel. The solid build quality ensures its long life, and it even comes with one year warranty.

There are eight expansion slots on this case, and it supports motherboards up to the E-ATX form factor, while there are two vertical expansion slots for the vertical graphics card mount. You can install 120mm fans on the top or two 140mm fans while there is space for a single 120mm or 140mm fan on the rear and three 120mm or 140mm fans on the front. The front side supports a 420mm radiator, 360mm on the top side and 140mm on the rear side.

To install the vertical GPU, you need the riser cable, which you need to buy separately, and it supports up to three graphics cards. There are three tempered glass panels on this case which you can install or remove using the buttons on the sides. There are fans and radiator mounts which will make installing and removing the fans easier for you. The front dust filter can be removed from the top, while the bottom filter can be removed from the front side.

Three 140mm fans come pre-installed with this case, while there is a single 140mm fan on this case. Most of the RTX 3090 graphics cards lengths up to 325mm, while this case supports graphics cards up to 450mm in size, meaning any RTX 3090 can be installed on it. A riser cable is required to install a vertical graphics card with cable lengths around 200mm in size. The power supply unit clearance is 220mm, more than enough.

The cable management, in this case, is one of my favorite things as it has 33mm space behind the motherboard tray. The weight of this case is slightly heavier, and its handles are impractical. The two 3.5-inches drive slots on this case are not enough for most users. There are a lot of RGB lights on this case with Aura Sync, and you can produce different RGB effects with them.

Cooler Master MasterBox TD500 (Image credit: Amazon)

Cooler Master MasterBox TD500

Best Enthusiast Case for RTX 3090


Crystal tempered glass.

Bundled ARGB fans.

Spacious interior.


No mounting hardware for all SSD bays.

Slightly loud under high loads.

The Cooler Master MasterBox TD500 gives all features that an enthusiast needs in his build but lies in the mainstream segment. The side glass panel and lots of RGB make this case a considerable option for those looking for an aesthetically appealing case. This case supports motherboard up to ATX form factor with great cable management. While it can also house E-ATX motherboards, size up to 10.7-inches but some cable management features will get limited.

The polygon mesh on the front offers a 3-dimension contour that offers excellent unobstructed airflow and filters the dust. Three ARGB fans come pre-installed, which are good in performance and aesthetics and worth the money. These fans come with optimized blades and an updated curve that balances static pressure and airflow. They take away a lot of heat from your case without having any noise, even at high speed.

The frame of this case is made up of steel, while there are some plastic parts on the front and another side, a crystal tempered glass on the left side and mesh on the front. The top and front side support 120/140mm fans or radiators, while the rear side supports 120mm fan, and there is no room for fans/radiators on the bottom. With a 410mm graphics card and 165mm CPU cooler clearance, this case can be used for any aftermarket RTX 3090.

In this case, the power supply unit can be mounted on the bottom, and there are vents for air intake with dust filters on them. You can install any ATX sized power supply on this case and not have any clearance problems. At the same time, the top and front also come with air filters, while the rear side lacks it as it’s used for air exhaust, and air/dust doesn’t come inside it.

There are seven expansion slots on this case and no vertical graphics card mount option. There is not enough mounting hardware to take advantage of all four 2.5-inches drive spots. The underside dust filter is not easily accessible or removable. The RGB lights of the fans are controllable with the supplied hardware, but the controller is a bit weird. Overall it’s the best case for RTX 3090 if you are an enthusiast and looking for something affordable.

NZXT H710i (Image credit: Amazon)

NZXT H710i

Best Looking Case for RTX 3090


Clean aesthetics.

Good construction arrays.

Great graphics card cooling support.

Available in lots of color combinations.


Top radiator cooling can be a weak point.

Front fans will be more impressive.

No bundled PCIe extension raiser.

The NZXT H710i is a top-of-the-line gaming case, and it comes with a hefty price tag. However, I think the price is justified due to the features it delivers in return. It’s a big, bold case that screams premium quality from its first impression and every other impression.

The look of the casing is a clean futuristic, sleek look which is quite pleasing to look at; although some might call it bland too, that’s part of its charm. Its sturdy build quality gives a tough time to the competition. It’s no compact box as it’s the top of the line and designed for performance extractors and tweakers who want a PC that hosts heavy-duty water cooling or even air cooling. As per our review, it’s the best case for RTX 3090 to consider in terms of looks and airflow.

It’s not all performance and now looks as if it comes with integrated RGB strips and a controller. You get a smart radiator mounting on top. A button press can open a right-side panel and a tempered glass left side. You even get cable management options behind the motherboard tray to make for a more clean-looking build. The only downside is that the front I/O panel looks a tad empty and could do with an addition of an extra port or two.

Cougar Conquer (Image credit: Amazon)

Cougar Conquer

Best Unique Case for RTX 3090


Good airflow inside the case.

The unique design makes it appealing.


No dust filters.

Cougar has outdone themselves by giving the community a PC case inspired by the Transformers design. The Cougar Conquer case is quite a unique case that is pleasing to look at and features a futuristic design. Cougar has targeted the PC modder community with the case’s aluminum frame can give you multiple modding options due to its unique design that sets it apart from the traditional cases; you won’t need to cut the metal to make space which is like a dream come true for modders.

The case itself has a mid-tower case form factor, and it can host a motherboard with a form factor of Mini, micro, and ATX form factors. It has a lot of space for airflow and plenty of openings so that you won’t be facing heat issues in most cases. However, you get space for hooking two 120mm radiators up front and three 120mm radiators on top. The open frame comes with tempered glass side panels that let you display your high-end PC components to everyone who wants to look at the inside. You get three pre-installed COUGAR CFD 120 LED Fans that will help facilitate the airflow, although you can replace them with your radiators.

With the extreme cooling performance and its unique design, the only downside is that the chassis is open from many angles. You will have to make sure that you place it in a dust-free environment; otherwise, you will have to clean it regularly. A unique design makes it one of the best PC case for RTX 3090 in 2022.


We’ve tried to make things easy for you and listed out the best case for RTX 3090 that is worth considering these days. In short, if you prefer the looks, I would suggest you get the NZXT H710i, and as per my experience with different casings, I’ve never seen anything more beautiful than these casings but don’t forget they are way too expensive. If you are bored with these rectangular-shaped casings and looking for something unique, you can go with Cougar Conquer, which I like the most because of its design.

Users who prefer performance more than looks should go with the Lian Li O11 Dynamic Xl or Corsair 5000x RGB. These casings are impressive in terms of airflow and thermal performance inside them. I’ve used O11 Dynamic XI in one of my overclocking builds, and the airflow inside the case was pretty good. There are many other options, too, and I’ve even reviewed some different casings but didn’t find them suitable for this build, so in my opinion, you should go with this one, or if you are building an HTPC or compact build, check out our smallest PC cases guide.

Frequently Asked Questions

What is the best case for RTX 3090?

You can consider many casings for your RTX 3090 graphics card, but the one I like the most is Lian Li O11 Dynamic XI as we’ve reviewed it, and it gave us exceptional results.

Can you fit RTX 3090 in ITX cases?

Yes, RTX 3090 can be fit in most of the ITX casings, but as the size of this graphics card is slightly larger than previous-generation cards, I would say check out the GPU clearance of your casing before buying it for your RTX 3090.

What are the best airflow case for 3090?

In short, I would say Corsair 5000x RGB is the best airflow casing that you can consider for your RTX 3090 as it has enough room to host this graphics card and have space for fans.

Kevin Penson
Love to build gaming rigs, play games and do benchmarks on them and write about them. That's all that I've in my hobbies.