Best PC case in 2021 – the top chassis to house your new build

Get the foundations for your new build right with one of the best PC cases

Cooler Master's Cosmos C700M case houses an expensive watercooled build and sits on a workbench in front of tools

When it comes to putting together the best gaming PC, the case is often an afterthought based on the budget you have left or what you think looks the best. But since it houses all of your shiny new components, it’s not all about aesthetics – you’ll want the case to have good airflow to keep your temperatures low, helping to prevent thermal throttling, keep things stable, and give more headroom when it comes to overclocking your CPU and GPU.

You’ll also want to look out for things like what connectivity is available on the front panel, as a USB-C port, for example, can fast-charge your phone or connect the best VR headset without you delving into the mess of wires at the back. How well the case lets you manage cables internally is also an important consideration to make, as it not only makes your gaming PC look the part but gives you an easier time as you build it. And there’s also the simple fact that some cases are easier to build with than others.

With such a wide range of cases on offer, it can be hard to sift through them all and find the perfect case for you. Whether you want the best mini gaming PC to replace a console, a case stuffed to the brim with RGB lights, or a chassis with superb airflow for the best overclocking potential, we’ve got something for you here.

Here are the best PC cases to buy in 2021:

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Be Quiet Dark Base 700

The best PC case is the Be Quiet Dark Base 700.

The best all-rounder in the PC case world is Be Quiet’s Dark Base 700, which is a mid tower sporting a sleek black design with RGB lights running down the trim and a large side window so you can peek at your components in action. It ticks all of the boxes for a great enclosure with a great cable management system and modern front panel with a USB-C port. While it doesn’t look great for airflow, with no visible vents on the front, all of the borders feature vents and there are some smart internal solutions to aid with airflow.

As its name suggests, there’s an emphasis on silent operation in this case, thanks to padded side panels and tempered glass that’s thicker than on most PC cases. The chassis is made of both metal and plastic, but don’t let that put you off – it’s still a sturdy case with a solid feel. It also has no issues fitting the best AIO cooler, with support for up to 360mm radiators mounted to the top, front, or bottom. It also features a fan switch so you can easily switch between quiet operation and performance based on your needs.

Be Quiet Dark Base 700 Specs
Case type Mid tower
Motherboard support ATX, Micro ATX, Mini ITX
Panels 1x tempered glass, 1x metal panel
Cooling 2x 120mm fans
I/O 1x Type-A USB, 1x Type-C USB, 1x 3.5mm jack
Dimensions (mm) 544 x 241 x 519
Product Image 1
$216.23
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Corsair Carbide 100R

The best cheap PC case is the Corsair Carbide 100R.

For around $50 / £50, Corsair’s Carbide 100R is one of the best low-price mid tower cases you can get without sacrificing quality. It’s a pretty simple design and available in any colour, er, so as long as that colour is black. It definitely doesn’t scream gaming PC, but there’s the option for a windowed panel if you want a bit of extra flair. Plus, it still does the trick when it comes to cooling, with room for a 120mm AIO cooler, and five mounting points for fans. Corsair offers superb build quality despite the low price point, so you can be sure your components are being well looked after.

There are other conveniences built in, too, like toolless drive slots and space for 5.25-inch bays. Yes, even in 2021 there’s still space to install a DVD drive, but maybe you still have some older disc-based PC games. Much like our top entry, the side panels on the Corsair Carbide 100R also have some insulation, helping the PC to stay relatively quiet. Add that to its subdued design and it could be the perfect case for a subtle PC build.

Corsair Carbide 100R Specs
Case type Mid tower
Motherboard support ATX, Micro ATX, Mini ITX
Panels 1x metal/glass panel, 1x metal panel
Cooling 1x 120mm fans
I/O 2x Type-A USB, 2x 3.5mm jack
Dimensions (mm) 471 x 200 x 430
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$59.99
$54.99
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Cooler Master Cosmos C700M

The best high-end PC case is the Cooler Master Cosmos C700M.

If money’s not an issue for your high-end PC build then Cooler Master’s full tower is definitely worth considering. Although the Cosmos C700M doesn’t come cheap, it packs a curved glass side panel and aluminium frame to help justify its premium price tag. There aren’t many PC cases offering RGB lighting on the outside, but this one does, with RGB strips running along the top and bottom of the case that even sync up to RGB headers on your best gaming motherboard.

Thanks to the monster size of the case, you don’t need to worry about components struggling to fit, with GPU lengths of up to 490mm supported. Cable management is on point too, with panels and grommets hiding the jungle of wires going around your PC. There’s extensive connectivity on the front too, with four standard USB 3.0 ports, and a USB Type-C port.

Cooler Master Cosmos C700M Specs
Case type Full tower
Motherboard support ATX, Micro ATX, Mini ITX
Panels 1x curved glass panel, 1x curved metal panel
Cooling 4x 140mm fans
I/O 4x Type-A USB, 1x Type-C USB, 2x 3.5mm jack
Dimensions (mm) 651 x 306 x 650
Product Image 1
$499.99
$464.70
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Cooler Master MasterBox NR200

The best mini ITX case is the Cooler Master MasterBox NR200.

If you’re building a pint-sized gaming PC then Cooler Master’s mini ITX chassis is a great choice. Unlike other cases this small, the MasterBox NR200 still has pretty good airflow, particularly if you choose the vented side panel over the glass option. Despite its small size, it’s still capable of holding some of the largest flagship graphics cards, with support for GPUs up to 330mm in length. It’s also surprisingly easy to navigate when building inside thanks to its 360-degree dismantling feature, avoiding the notorious difficulty that comes with other mini ITX cases out there.

You can even stuff a 280mm AIO cooler in there, allowing you to build a powerhouse inside this diminutive chassis. The case is available in black or white and made of steel, which feels solid. Due to its small size, however, you’ll have to source a slightly more expensive form factor power supply.

Cooler Master MasterBox NR200 Specs
Case type Mini ITX tower
Motherboard support Mini ITX, Mini DTX
Panels 1x metal/glass panel, 1x metal panel
Cooling 1x 92mm + 1x 120mm fan
I/O 2x Type-A USB, 1x 3.5mm jack
Dimensions (mm) 360 x 185 x 274
Product Image 1
$159.99
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Lian Li Lancool 205M

The best micro ATX case is the Lian Li Lancool 205M.

A micro ATX case is the best way to cut down the size of your PC without some of the sacrifices to airflow and PSU compatibility that occur with the smaller mini ITX varients. Lian Li’s Lancool 205M is one of the best micro ATX cases you can buy, available in black or white with a solid build quality thanks to its steel frame and large glass side panel to show off any RGB components you might have.

Despite the small footprint, you can still fit a 240mm AIO cooler at the front or along the top. It’s also got a separate, removable side panel solely for accessing SSDs and hard drives, making it an easy task to add or remove storage. Plus, there’s plenty of space behind the motherboard tray and a power supply shroud for managing cables.

Lian Li Lancool 205M Specs
Case type Mid tower
Motherboard support Micro ATX, Mini ITX
Panels 1x glass panel, 1x metal panel
Cooling 2x 120mm fans
I/O 2x Type-A USB, 2x 3.5mm jack
Dimensions (mm) 210 x 415 x 400
Product Image 1
$59.99
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Corsair 4000D Airflow

The best airflow PC case is the Corsair 4000D Airflow.

Looking for the case with the best airflow to keep your components running nice and cool, and perhaps give you more overclocking headroom? Corsair’s 4000D Airflow case (it’s in the name for a reason) touts a front panel that’s designed to take in as much air as possible, with up to three 120mm fans, and look good while doing so. You can even fit a 360mm AIO here, or a top mounted 280mm one. Cooling for days.

Its minimalist design might be hit or miss depending on what you’re into, but you can always kit it out with RGB fans if you want to give it more personality. We think the triangles do a wonderful job of making it stand out as it is, however. Cable management is easy thanks to the plentiful space behind the motherboard, a cable routing channel, and a power supply shroud to further hide the wires. As a bonus, there’s also a Type-C USB port on the front I/O.

Corsair 4000D Airflow Specs
Case type Mid tower
Motherboard support ATX, Micro ATX, Mini ITX
Panels 1x glass panel, 1x metal panel
Cooling 2x 120mm fans
I/O 1x Type-A USB, 1x Type-C USB, 1x 3.5mm jack
Dimensions (mm) 453 x 230 x 466
Product Image 1
$94.99
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Corsair iCUE 4000X RGB

The best RGB Case is the Corsair iCUE 4000X RGB.

Yes, it’s yet another Corsair chassis on the list, but we can’t argue when its iCUE 4000X RGB really is the best RGB case if you’re looking to light up your build. There are three 120mm RGB fans preinstalled behind the glass front panel, and you can mount up to three more inside.

It’s available in black or white, and is still one of the best cases even without factoring its stylish RGB lights. There’s a smart cable management system behind the motherboard tray, a power supply shroud to tuck away any mess, and Corsair’s great build quality. If you’ve got an RGB graphics card that you want to show off, you can also mount it vertically with Corsair’s PCIe 3.0 riser cable, although this is sold separately.

Corsair iCUE 4000X RGB Specs
Case type Mid tower
Motherboard support ATX, Micro ATX, Mini ITX
Panels 1x glass panel, 1x metal panel
Cooling 3x 120mm RGB fans
I/O 1x Type-A USB, 1x Type-C USB, 1x 3.5mm jack
Dimensions (mm) 453 x 230 x 466
Product Image 1
$134.99
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PC CASE BUYING GUIDE

Looks are probably the largest consideration when buying a PC case for many gamers, and since this is subjective, we’ll leave that up to you. However, while aesthetics are tempting you’ll want to look for cases with good airflow so your components can breathe freely, with lots of fan mounting points to push air in and out of the system. Corsair’s 4000D Airflow case is perfect for maximum airflow. Noise is often dependent on what your rig is running, but the sound dampening features in the Be Quiet Dark Base 700 are sure to keep decibels down, although it’s unlikely to cover up high frequency sounds like coil whine.

If you’re going for a smaller mini ITX case, be sure to check out the supported dimensions for larger components like graphics cards or the best CPU cooler, as they won’t always fit. You’ll also need to check whether you’ll have to purchase an SFX power supply rather than the usual larger ATX power supply. In addition, these smaller cases can be a headache to build in depending on their design, although Cooler Master’s MasterBox NR200 is an exception to this problem thanks to its 360-degree dismantling granting you easy access to all areas.

pc case price list

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$216.23
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$59.99
$54.99
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$499.99
$464.70
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Product Image 4
$159.99
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Product Image 5
$59.99
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Product Image 6
$94.99
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Product Image 7
$134.99
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