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The 7 Best Selling Largest PC Case For More Space

No matter that your PC is the centerpiece of your home that you love to show off or you use it as just a PC under the table, having the right computer casing matters.

At a minimum, you want a large PC case that meets your needs and offers ample space for all internal PC components, hardware, and other devices. Some pc cases have compact interior space, but some PC cases are bigger and provide much more space.

Roomy innards also help to maintain the optimum temperatures, quiet working, and other benefits. Similarly, the biggest pc cases also have fancy-chancy panels and glorious RGB lighting better than the smaller ones.

Is It Vital To Have A Biggest PC Case?

Ultimately, the major difference is airflow. A big computer case has higher CFM fans and better cycling of air into the case to keep the components cool and calm.

But if you don’t have the appropriate configuration or enough cooling options, ‘dead’ air will build up more heat, and it will not work better than a smaller PC case.

Similarly, proximity also plays a vital role here. In a compact pc case, all internal components are crammed compactly around each other that can produce radiant heat, and various PC components can heat up each other up irrespective of overall temperature.

That is why many users prefer big pc cases that allow enough space for smooth customization and prevent overheating.

Below are some of the most significant PC cases on the market that we shortlisted after thorough research and analyzing different consumer reports. Let’s dive in and review each of them in detail:

What is the biggest PC case size?

As for the biggest computer case, Full-tower cases are the winners. In contrast to mid-tower cases, Full-tower ones have 22 inches as the standard height. The width of these cases may vary due to different factors. 

Even though these cases are huge in size, they come with a lot of benefits. Firstly, with a full tower case, you can get more space for expansions and upgrades. Another thing is, a bigger PC case offers a better cooling mechanism. With more fans and room for ventilation, you can surely sort out your overheating issues.

What is the Most Overkill PC Case?

There may be a lot of options to consider for the most Overkill PC Case. But based on my personal opinion, the Thermaltake Core W200 is the largest full-tower PC case out there. Even though having an overkill PC case may sound like a waste of money, but this one has it’s own perks.

Best Largest Computer Cases – Comparison

Corsair Obsidian Series 1000D...Corsair Obsidian 1000D27.3 x 12.1 x 27.4 inchesCheck Price
Deep Silence 6 Super Tower...Nanoxia Deep Silence 620 x 8.6 x 20.9 Inches Check Price
Corsair CC-9011063-WW Graphite...Corsair Graphite 780T 27.1 x 13.07 x 26.3 InchesCheck Price
Cougar Conquer 2 All New...Cougar Conquer 233 x 29 x 18 Inches Check Price
Cooler Master Cosmos C700M...Cooler Master Cosmos C700M25.6 x 12 x 25.6 Inches Check Price
Thermaltake Core P8 Tempered...Thermaltake Core P8‎29 x 27.5 x 13 InchesCheck Price
Asus ROG Strix Helios GX601...Asus ROG Strix Helios GX60122.24 x 9.8 x 23.26 Inches Check Price

Hands down,  Corsair Obsidian 1000D   Pc case is the largest pc case in the market. You will find many other large cases on the market and in this list, but this Corsair is the ‘beast’ in terms of dimensions and performance. The Corsair 1000D is our top-rated pick and super pc case for high-end uses. Let’s check what it has for you.

biggest pc cases


The 1000D is a beast. As for the build quality and design, it features robust, heavy-duty steel and aluminum construction. We also loved the sturdiness of its tampered side glass panel.

When powered on, you will see lovely internal components glowing inside the case, and you will surely admire the appeal and looks of this durable and large computer chassis.


The greatest feature of this Corsair 1000D after its superb cooling is that it can accommodate dual PCs. In simple words, you can fix one Mini ITX motherboard with your ATX or EATX motherboard and enjoy using 2 PCs inside one computer chassis!

This chassis is also great for high-end gaming uses and if you plan to build a top-notch gaming pc as it can support all GPUs and other demanding components. Similarly, if you are engaged in intense uses or tasks, you choose this case.

Cable management and Airflow

The Corsair 1000D features a triple-chamber design that enhances the port management and also improves the airflow of internal PC components. Similarly, this large Pc case has enough room to hide not so good looking Pc components like the power supply.

For optimum cooling, it has a smart fan controller that allows you to install RGB fans. This makes it the best largest pc case, but also its features are top-notch and unique like its size.

Apart from the triple chamber design and support for dual systems, it also features the best cooling mechanism. The case features the finest cooling capacity. So, it not only has sufficient space but also makes excellent use of available space.

To be precise, it offers support to eighteen cooling fans and four cooling radiators. Can you believe it!!

Key Specs:

  • Comes with 10 x expansion slots.
  • Max GPU length is up to 400mm (enough for smooth airflow and RTX 3090 builds).
  • The front panel has two USB 3.1 ports, gen-2 type C USB ports, and audio ports (all backlit with RGB).
  • Easy to reach but hidden bays 5 x 3.5″ & 6 x 3.5″ drives.
  • Support 18 x 120mm fans (you can configure 10 x 120mm + 3 x 140mm).
  • Support 4 x 480mm + 1 x 240mm radiators.


Lastly, whether you want to build a gaming pc or need a demanding PC setup for optimal performance, this is your safest bet.

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Our next pick is for those folks looking for the largest and the quietest gaming case. Having said this, we present you with this Nanoxia Deep Silence 6 tower PC case.

largest computer case

Spoiler Alert here: it doesn’t have all the bells and whistles like our previous pick, but still, we have included it on this list.

Want to know why? Continue scrolling down!!!

Design and build quality

The Deep Silence 6   layout and build quality has everything that you need and expect in the premium and silent PC chassis. It features heavy-duty and thick steel material that’s hard to find in other models. Yes, it is extremely durable!

Its exterior’s major portion consists of industrial sound-proofing elements that make it utterly silent and enhance noise isolation properties. The chassis is the quietest on the market today, especially when you look at its large size.

In terms of looks and appearance, it includes a perfect blend of robust materials and good looks. Its lovely design makes it a center of attraction in your home space and makes it suitable for high demanding uses such as gaming.

We also find it essential to mention here that you can also use it as a server Pc due to its silent working and roomy interior. Similarly, inner space is more than enough for media/HTPC uses.

Support and Storage

The chassis features a six-bay mounting frame that can accommodate a total of six 2.5 inch drives. You can mount these drives by using a rubber suspension. Furthermore, its frames use three 3.5 inch drive bays for a quick installation.

We found the mounting frame practical and straightforward to use. Lastly, you can also expand it as per your demands. And it is well-designed as well.

Cooling options

In terms of cooling mechanism, this Deep 6 shines and comes with many cooling options and support. We liked that it comes with five 5 140mm fans that are sufficient for most of the users. However, if you want to build a super gaming case, don’t worry; you can add more components like fans and radiators in its triple-chamber design.

The unit is designed for high end uses and offers plenty of space for efficient port management. It features separate compartments for various PC components and keeps within easy reach.

Key Specs:

  • Supports HPTX / XL-ATX Motherboards, and you can also use it with ATX or E-ATX motherboards.
  • It comes with ten available expansion slots.
  • Max GPU length is up to 400mm; well-suited for almost all mainstream graphics cards.
  • Features (hidden) drive bays of four 5.25″ external, two 3.5″ (with adapter).
  • Support eight 140mm fans + 1 x 120mm fans along with 5 140mm quiet fans (built-in). 
  • You can adjust the working of these fans by using the controller on the front panel as per your needs.
  • Provide radiator support 1 x 360mm, 1 x 280mm & 1 x 140mm. You can combined radiators with fan setup.


To simplify, the Deep Silence 6 is the largest and the best silent pc case that you can get today.

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If you want a “big” pc case while remaining with the “budget,” usually it is quite difficult. But not all difficult when you will look at this Corsair Graphite 780T. The price is right, and it is much bigger than the regular pc chassis. What’s more? It has some prominent features that we are going to discuss below:

biggest case pc

Chassis Design and Build Quality

The casing is just striking. It features curvy, dense steel construction that is designed to last. Overall, its design looks different from the usual. We also loved its latched handles on the panels. These latches on the panel allow you to effortlessly open and closed it without scratching or damaging its glossy finish.

Apart from it, its specs are higher and cost much less than the other picks on this list.

Support and Cooling Mechanism

The chassis has ample space that allows for a high-end build. You can easily fix high-end GPUs inside the case. After all, it is one of the largest ATX cases on the market. The inner space allows you to smoothly reach into the nooks and crannies and make the necessary adjustment.

As for the cooling options, it has separate space for air cooling and liquid cooling. The case offers plenty of space for nine 120mm fans, and you can easily fix 120mm to 360mm liquid cooling radiators inside the case. Further, there are two separate places for 360mm radiators. All these work together to keep your intense components cool, and it works.

Drive Bays

The case comes with tool-less drive cages. Each cage can accommodate three 3.5-inch drives. Furthermore, you can use the adapter brackets and fix a couple of 3.5-inch drives on the cage’s top. So, in terms of storage, this case is up to the standard. You can also fix three 2.5 inch drives on its backside.

No doubt this case is large, but still, you will have to remove the drive cage to fix the cooling radiator inside. You can call it an inconvenience or a flaw in the design, but it is true.

Key Specs

  • This exceptional full tower comes with nine expansion slots.
  • Elegant front panel.
  • Max graphics card length is up to 355mm.
  • Comes with combo drive bays two x 5.25″, two x 2.5″ & six x 3.5 /2.5″.
  • Efficient and well-designed cable management facilities.
  • The chassis comes with ten x 120mm fans and 3 x 140mm fans with LED lights.
  • You can also combine a fan setup with two x 360mm radiators for reliable cooling.


Overall, this chassis works, and we will rate it above the standard pc cases, especially when you look at its affordable price and performance.

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If you are looking for a large pc chassis that will turn some head in your neighborhood, then go for this robotically designed Conquer 2 PC case.

stylish largest full tower pc case


The case is nicely wrapped in thick metal, and it comes with four tempered glass panels. The unit features exceptional design and material-wise; it is one of the most durable PC cases on the market today.

Another feature that will amaze you is its ARGB lighting nicely placed on the case front side. Plus, the ARGB lightning comes with a fan hidden at the bottom. With glorious RGB lightning, this case is different from the others and looks incredibly outstanding.

Cooling Mechanism 

Some of you might find its specs and features lower than the other chassis on this list, but before arguing, keep its price in mind. Having said, the Conquer 2 features an open-air design that allows for maximum airflow throughout the casing.

In other words, the cooling solutions, in this case, are more than sufficient for common household uses and even for a reliable gaming setup.

Precisely, it can support up to six 120mm cooling fans, or you can replace them and install one 240mm and one 360mm cooling radiator.

Drive Bays

Furthermore, the drive bay support is lower than the others. The case supports one 2.5″, one 3.5″, and two 2.5″ drive bays. These will be enough for common uses until you are designing a server PC or a PC for HTPC uses.

Support and Port Management

At a glance, it looks a bit tricky to build this case. But as it comes with a removable sub-chassis so customizing it not an issue. You can easily detach a tray from the middle. This will give you more than enough space to work and customize settings as per your needs. Port management is also enough in this case, and nothing exceptional about it.

Key Specs:

  • Comes with eight expansion slots & you can fix two vertical GPU.
  • Max VGA length is up to 400mm.
  • Comes with two 2.5″, one 3.5″, and two 2.5″ drive bays.
  • Supports up to six 120mm cooling fans.
  • You can also install one 240mm and one 360mm cooling radiator.


This Conquer 2 is the powerhouse, and it is best if you want something different from the others.

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Our next big computer chassis is the best alternative to our top pick, the 1000D, and it is a bit affordable than the Corsair 1000D. The Cooler Master Cosmos C700M   chassis is built explicitly for high-end uses, and it is one of the most elegantly designed pc cases today.

good looking largest mid tower case

Design and Build Quality

The case features robust aluminum and steel construction and includes a curvy tempered glass hybrid panel. The included ARGB lighting might not be the brightest, but it looks elegant and enhance its shiny looks more. We also like the handles on the case top that allows you to carry it securely.

Front Panel

The case front panel features four USB 3.0 ports and a USB 3.1 Type-C ports, audio and microphone jacks, an LED indicator, a control switch for fan and ARGB lighting. The front panel is well-designed and comes with everything that you will need for a swift working.


The inner side of the C700M has ample space to design powerful gaming or video editing PC. The chassis comes with eight expansion slots and a wide opening to manage cables. The ventilation goes from the bottom of the case to the top direction. The PSU has a separate bottom-mounted. It also features separate slots for exhaust-fan, and you can comfortably place 120mm and 140mm fans.

Further, it comes with three pre-installed fans, and in total, it provides support to nine 140mm fans. Plus, you can also adjust the fan’s positioning for better airflow.

Key Specs

  • Comes with eight expansion slots.
  • Max GPU length is up to 490mm (320mm with bracket).
  • Features one 5.25″, four 3.5″ and one 2.5″ combo and four 2.5″ hidden drive bays.
  • Comes with three pre-installed fans and supports nine 140mm fans.


We will not say it is a poorly designed cover, but it misses some of the essential features needed to build a high-end PC. However, the case is more than enough for regular use.

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Do you know? You can minimize space if you use your pc case in a horizontal way. Check out some of the horizontal cases that can be used as tower and horizontal too.

The brand that you can trust, Thermaltake, offers their latest pc case for all tech lovers, the Core P8   Tempered Glass Tower Chassis. Let’s check out what it has for you.

affordable largest case for pc

Design and Build Quality

The chassis includes three 4 mm tempered glass windows on the front, side, and top. The transparent design looks lovely, and the overall build quality is reliable. You can also remove its top and front panel and use it as an open frame case. Overall, the looks are awesome, and with RGB lightning, this large PC case shines and glows.

Front panel and Ports

It makes things easier for you by providing more than enough options in terms of port management. You will find one Type-C port, two USB 3.0 ports, and two USB 2.0 ports along with an audio port on the front panel.

Dust Reduction

The chassis also features fan filters on the top, side, and bottom that allows for easy cleaning of the filter. The filter also allows for excellent ventilation throughout the casing.

Drive bays support and Cooling Options

Thermaltake Core P8 TG Chassis has everything that you will need for optimal cooling. It also supports E- ATX motherboards apart from the standard option. Furthermore, it supports four 120 mm fans on its front, four on the bottom, four on the top side, and two on the backside. In total, you can install eighteen 120 mm fans, or you can place twelve 140 mm fans inside the casing in different locations.

As for the radiator, you can place a 480 mm on its front side, one 420 mm on the top side, one 480 mm on its right side, and one 240mm radiator on the bottom side.

Moreover, it has eight expansion slots for you. And you can place one 2.5″ drive with pump bracket), and three 3.5″ drives, or six 2.5″ storage devices with HDD bracket.

Key Specs:

  • Features eight expansion slots.
  • Comes with one 2.5’’ drive bay and three 3.5’’ or 6 x 2.5’’ bays (With HDD Bracket).
  • The front panel has one USB Type-C, two USB 3.0 ports, two USB 2.0 ports, and one HD Audio slot.
  • Max CPU cooler height is up to 180mm.
  • Max VGA length is up to 280mm with reservoir and 320mm without reservoir.


All in all, it is one of the largest and the best PC casing designed for demanding uses. But keep in mind that it is more expensive than the others on this list.

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At this spot, we have the ROG Strix Helios GX601 Mid Tower RGB PC Case. The case is gorgeous, includes marvelous features and excellent airflow. The case is big and has ample space for GPU, CPU (liquid/air), and Motherboards. Cable management is also efficient, and the front panel is loaded with plenty of ports and slots.

premium largest gaming pc case

Design and build quality

The case features a glass front and side panels. On the front panel, you will find vibrant RGB lights and a lovely ROG Strix Logo. The panel is transparent and provides an eye-catching internal view. Moreover, the panels are removable as well.

You will find a fan controller, RGB button, and on/off button on the front side, along with plenty of USB and audio ports. The Asus Rog PC case features smooth curves on the corners that further enhance its looks. The main material in the body is aluminum that is durable and light-weight.

Cooling Support

It comes with three pre-installed fans. There are no RGB fans on the front side, but you will find one RGB fan on the backside. It can support 3x120mm or 3x140mm fans (front), 2x140mm, or 3x120mm (top).

Furthermore, you can fix one 140mm fan or one 120mm fan on the backside.

Similarly, radiator support is also more than enough in this big PC case. You can place five radiators on the front side and five on the top side. The backside can accommodate 120mm and 140mm cooling fans.


The case can support ATX/Micro, ATX/Mini, ITX/EATX motherboards. Further, you can place the CPU easily inside the case. You can also place GPU with a max clearance of up to 450mm. The GPU can also be mounted vertically.

Cable Management

Asus Helios GX601 has a lot to offer when it comes to cable management. You can place cables under a plastic cover. That allows you to set and route the cables without any hassles. Just remove the plastic, and there will be a separate space that allows for smooth management of cables inside.

Key Specs:

  • Comes with 8+2 (additional vertical) expansion slots.
  • There is one USB 3.1 Gen 2, Type-C port, four USB 3.1 Gen 1 port, and an audio port on the front panel.
  • Supports two 2.5”/3.5” Combo Bays and four 2.5” Bays.
  • Comes with three 140mm fans and one 140mm pre-installed fan.
  • Max GPU length is up to 450mm.
  • Max CPU Cooler height is up to 190 mm.


Asus Helios GX601 is one of the biggest pc cases on the market that comes at an affordable price. It includes all the necessities to design a high-end PC.

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So, here we are at the end of this review post about the biggest computer case. All these PC cases are designed for high-end uses and offer ample room. Plus, all these cases allow you to place and adjust various internal components like PSU, cooling support, drive bays correctly, and as per your preferences.

Last update on 2022-01-19 / Affiliate links / Images from Amazon Product Advertising API

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