Best PC Cases to Buy for the RTX 5090

Now that NVIDIA’s latest and greatest gaming graphics card has been on the market for a couple of months and has become slightly easier to purchase, case manufacturers have had some time to produce chassis big enough to house this king of 4K gaming. There is no disputing the sheer power of the RTX 5090, and I am sure that those with deep pockets and a desire for high frame rates are eager to find a case that they like enough to install it within.

But that raises the question: What is the best-case RTX 5090? You’re in luck, as we’ll answer that very question in this article. Over the last few years, we’ve tested and used hundreds of PC cases, reviewing many of them right here on our website, which you can read.

That makes us well-equipped to recommend some fantastic chassis for the RTX 5090. These options cover a broad range of use cases, aesthetic preferences, and compatibility, providing terrific options for your next build.

Our Top Pick: HAVN HS420 VGPU

The HAVN HS420 is the ideal case for the NVIDIA GeForce RTX 5090. Its impressive size and striking design suit both new and experienced builders. This case showcases components beautifully, offers ample space for cooling, and is easy to build with. Its unique design delivers excellent airflow and thermals.

The RTX 5090’s powerful gaming performance pairs perfectly with the HAVN HS420, creating a visually stunning, high-performance rig ready for even the most demanding sessions.

HAVN HS420 VGPU in Black

$299.99 at Amazon

Last updated: 2025-10-15 16:56:25 ET

HAVN HS420 VGPU in White

$299.99 at Amazon

Last updated: 2025-10-15 16:56:25 ET

The Best PC Cases for the RTX 5090

1. HAVN HS420 VGPU

A relatively new brand in the PC landscape, HAVN, launched its first PC case to high praise across the industry. The HS420 is a large mid-tower case featuring a curved tempered glass side and front panel, forming a striking piece.

The HS420 is virtually unrivalled when showcasing your build in all its glory. It is compatible with 420mm radiators on the top and sides, as well as three 140mm fans at the bottom of the chassis. It moves the PSU to the rear chamber, providing ample space for cable management and plenty of cable routing channels. HAVN also offers its SimpliCable routing system, designed to streamline the cable management process, making it easier for novice builders.

Despite the dual-chamber design, the chassis minimises width compared to competitor options, and adds height to create one of the tallest PC cases we’ve built with in some time. Despite its height, the HAVN HS420 doesn’t feel too empty at the bottom, balancing this with the vertical GPU mount and an angular fan mount for improved airflow. It generally does a good job of feeling balanced and proportional in many respects.

The more expensive VGPU variant of this case is the big winner in our books, providing not only a vertical GPU mount with PCI-E Generation 5 riser cable (you’ll need this for the RTX 5090!) but also fan mounting and a glass airflow shield in a bid to keep GPU temperatures low. All of this makes the HAVN HS420 VGPU a fantastic bet for those looking at a PC case for the RTX 5090.

2. NZXT H9 Flow RGB 2025

The NZXT H9 Flow RGB is an absolute dream to build in, and it’s not just about looks! Combining stunning visuals with optimised airflow layouts, it maintains low temperatures and high performance. Its dual-chamber design separates main components from the power supply and drives, further enhancing thermal performance. Made from quality SGCC steel, the case features perforated steel panels and angled front-right fans that ensure efficient cooling for high-performance builds. While the steel construction adds durability, it also contributes to a slightly heavier footprint at 12.6 kg (27.78 lb).

It is a mid-tower that sits on the larger end in terms of size, making it perfect for housing your shiny new graphics card, as it can accommodate a GPU with a length of up to 459mm! The wraparound tempered-glass side panel presents a panoramic view of your build, framing your build as a top-tier exhibit with every detail of your seamlessly built PC on display. Additionally, you won’t need to worry about cable management, as this case features a well-supported cable workflow with extra-wide channels, velcro straps, and tie-down points, making cable routing extremely simple and keeping them out of sight. You can fill out the chassis with up to 10 fans, eliminating the hassle of planning how to wire them up. If your cooling problems weren’t solved by the streamlined air cooling layout or the maximum fan capacity, you can also mount large 420mm radiators on either the top or side panels.

Most importantly, this case provides clearance of up to 459mm for graphics cards, meaning there is plenty of space for top-tier graphics cards, such as the bulky 50-series cards. The only letdown of this case, in terms of GPU compatibility, is that it doesn’t include a GPU bracket, so you’ll need to purchase one separately to prevent GPU sagging. Check with your GPU retailer to see if it is an included accessory with your purchase, as it may save you a little money. It is possible to vertically mount your graphics card with this case, but you’ll need to purchase the NZXT Vertical GPU Mounting Kit separately to do so.

3. Lian Li O11 Dynamic EVO RGB

Lian Li’s O11 Dynamic EVO RGB case is the ultimate ‘Do It Yourself’ case, where PC fanatics can tailor their chassis to their own desire thanks to its modular design and flexible configuration. Features such as the front pillar, IO location and amount, motherboard installation position, cable management, and case orientation can all be customised. If you know exactly how you want your internals to look, this case will support your ideas.

The O11 Dynamic EVO RGB’s frame is composed of aluminium, the side panels are made of tempered glass, and its front pillar can be removed for an unobstructed view of your hardware. This is one of the few cases that allows you to swap its tempered-glass panels on the left-hand side, meaning you can place this case anywhere in your setup and still see inside.

This Lian Li case also has a well-thought-out, improved cable management design, including large velcro straps near the PSU chamber, dual-layer cable clips that can hold both bulky and thinner cables, and extra space where the PSU mounting bracket is located to further manage and store cables.

The chassis can house up to 10 fans, just like the NZXT H9 Flow RGB 2025 case, putting high-performance air cooling setups within your reach. This case doesn’t come with pre-installed fans; however, you get to choose which fans you use, but additional costs will be incurred later down the line. There are also 1.5mm thick L-shaped ARGB strips at both the top and bottom of the chassis that can switch between 14 different lighting effects, adjust brightness and colour, and sync with the motherboard. If the thought of RGB synchronisation crossed your mind regarding fan RGB setups, choosing fans that are compatible with your motherboard will solve this problem.

Now, regarding the GPU, this case is well-equipped to house your RTX 5090 card with its spacious clearance allowance of up to 455.7 mm and a built-in anti-sag bracket, just as long as it is installed in the 2nd PCIe expansion slot; this is a lovely feature as the 50 Series cards are heavy and typically require the extra support to take stress of the GPU card and slot. This case also features additional optional accessories for mounting your GPU vertically, if that is more your style.

4. Phanteks NV5 V2

If you want a more affordable midpoint between the HAVN HS420 VGPU and Lian Li O11 Dynamic EVO RGB, why not consider Phanteks’ refreshed NV5 V2? This case is affordable, at around the $100 price point, and takes design cues from the fishtank-style PC cases with glass up front and on the side. The case’s top panel is a more traditional mesh panel that allows for mounting fans and radiators, while you get both side and bottom intake for those looking to keep a lid on temperatures. 

The NV5 is drastically smaller than the HS420, but despite its much more affordable price point, it still offers superb build quality and is easy to assemble a PC within. Furthermore, the spacious rear chamber of this case simplifies cable management, allowing you to clean up all of your wires without causing any cable bulges on the rear panel. James has built inside the Phanteks NV5 several times and is a big fan of the design compared to other options at the price point.

If you’re looking to pick up an RTX 5090, or any large form factor, high-end GPU, for that fact, we hope this roundup has provided some ideas for cases you should consider for your next gaming PC build!