5 Best ATX Cases in 2021 For Your PC

Written by Branton

Last updated Jun 20, 2021

best atx pc cases

Picking a good PC case can be one of the hardest parts of any build. Not because it’s hard to find a good one, but because there are just so many good options.

To (hopefully) make your search a little easier, I’ve put this list together that showcases my top 5 picks for the best mid-tower ATX cases you could get. The cases on this list are what I would consider top-tier in terms of price vs performance.

That’s to say, this list is not exhaustive and it’s more subjective than anything. Since a big part of picking a case is how it looks (for most people), a case I like might not be the same case that you like. It also  depends on the motherboard you have so you may need the smallest ATX case out there, or a micro ATX case, or ITX case if you have an ITX motherboard.

In addition, you can consider one of the best NAS cases we covered in our reviews. There is also our tight lineup of the best PC cases under 100 USD.

If you have any questions, don’t hesitate to leave a comment!

Favorite ATX Cases Comparison

Editor's Rating: 4.8/5
  • Very high-quality
  • Easy to build in
  • Comes with 2x 140mm fans
Editor's Rating: 4.8/5
  • Full PSU shroud
  • No Puck
  • S340 Successor
Editor's Rating: 4.7/5
  • Easy to build in
  • Full PSU shroud
  • Has a 5.25″ ODD bay

5 Best ATX PC Cases 2021

Editor's Rating: 4.8/5

The Dark Base 700 from be quiet! is undeniably one of, if not the best mid-tower ATX case you can buy. It features everything you could need in a case, including a removable fan/radiator tray (for ease of installation), a dual rail fan hub, and an ingenious PSU shroud with detachable plates. The front I/O even contains a USB 3.1 Type C Gen 2, a feature not commonly seen on front I/O panels.

Header

Form

Mid-Tower

Motherboard Support

ITX, mATX, ATX, E-ATX

CPU Cooler Clearance

Up to 180mm

GPU Clearance

Up to 315mm

Fan Support

5x 120mm (7x 140mm)

Radiator Support

Up to 360mm

Drive Bays

3x 3.5″ (up to 7) | 9x 2.5″ (up to… 17…)

Front I/O Support

2x USB 3.0 | 1x USB 3.1 Type C | 3.5mm audio in/out | RGB controller | Fan controller

Weight

29.2lbs

Dimensions (L x W x H)

23.7″ x 12.8″ x 22.9″

The Dark Base 700 also features a big tempered glass side panel to show off your parts. It comes equipped with 2 of be quiet!'s 140mm Silent Wings 3 fans that are practically inaudible, even when cranked up to their 1600RPM performance mode.

The exterior of the case is accented by vivid RGB LEDs that can be toggled through 6 switchable colors or 3 preset modes. Beyond that, these RGB LEDs can also sync up with your motherboard or an RGB controller for complete continuity.

At the end of the day, the Dark Base 700 is simply one of the best choices you could make, as long as the price point doesn't scare you away. Otherwise, buying this case is a no-brainer.

Pros

  • Very high-quality
  • Easy to build in
  • Great cable management options
  • Great cooling profile and options
  • Comes with 2x 140mm fans
  • Motherboard tray can be removed and used as a test bench

Cons

  • It’s a little expensive
  • Twice as heavy as most cases this size

Editor's Rating: 4.8/5

The H500 is one of NZXT's newest, and probably one of their best cases they've released to date. It's effectively the successor of the S340 and offers a few notable improvements.

NZXT nailed it with this case and it serves as a great successor to the S340. Any complaint you might have had about the S340 has probably been fixed and the H500 even offers more value considering it comes with a tempered glass side panel for the same cost as the S340 and its acrylic side panel.

Header

Form

Mid-Tower

Motherboard Support

ITX, mATX, ATX

CPU Cooler Clearance

Up to 165mm

GPU Clearance

Up to 381mm

Fan Support

4x 120mm (2x 140mm)

Radiator Support

Up to 280mm

Drive Bays

2+1 3.5″ | 2+1 2.5″

Front I/O Support

2x USB 3.1 Gen 1 | 3.5mm audio in/out

Weight

 15.4lbs

Dimensions (L x W x H)

18.11″ x 8.26″ x 16.85″

Something seemingly strange about this case is the default fan configuration. NZXT decided to go for 100% negative air pressure and opted to run both 120mm fans as exhaust. Although this might seem strange, it actually works quite well - even better if you remove the top air filter. But, if you live in an especially dusty area, or with lots of pets, you might want to rearrange this to a neutral or positive air pressure to reduce the amount of dust getting sucked into your case.

The H500 gets the #2 spot on this list for a few good reasons. Not because it cools the best, is the quietest, or because it offers the best features. Nope. It gets the #2 spot for being an exceptionally high-quality case with an extremely good price - definitely worth checking out, especially if you're a fan of the S340.

There's also a slightly more upgraded version dubbed the H500i that includes a smart panel and RGB lighting, just in case you want those features.

Pros

  • S340 Successor
  • Multiple color options
  • Good cable management (if you’re picky)
  • No Puck
  • Full PSU shroud
  • Comes with 2x 120mm fans

Cons

  • Not the quietest
  • Somewhat cramped cable management (if you’re messy with cables)
  • Default fan setup might seem strange at first

Editor's Rating: 4.7/5

Phanteks has a reputation of making some of the most aesthetically pleasing cases out there. Out of their most recent cases, I can't even think of one that hasn't looked great without being excessive. Not only do their cases look good, but they generally perform well too.

Header

Form

Mid-Tower

Motherboard Support

ITX, mATX, ATX, E-ATX (up to 264mm wide)

CPU Cooler Clearance

Up to 194mm

GPU Clearance

Up to 420mm

Fan Support

7x 120mm (5x 140mm )

Radiator Support

Up to 360mm

Drive Bays

2x 3.5″ | 1x 2.5″

Front I/O Support

2x USB 3.0 | 3.5mm audio in/out | RGB controls

Weight

15.4lbs

Dimensions (L x W x H)

19.7″ x 9.25″ x 18.9″


Enter the Pro M (with Tempered glass). Not only does it look great (IMO) but it performs well to boot - just what you'd expect from a Phanteks case. If you're familiar with the older Enthoo Pro M, this is just the newest iteration of it.

It's boasting a huge tempered glass side panel and features a clean layout that lends itself to great cable management. The (nearly) full PSU shroud covers everything but the side of your power supply, just to make your build that much cleaner. It's also featuring a side-mounted front I/O panel (perfect for on-desk setups) and great overall airflow. It's also one of the few modern cases to feature a 5.25" ODD bay.

Out of the box, the Pro M comes with 2x 140mm fans. It also offers great support for liquid cooling setups by giving you dedicated reservoir mounts and super easy installation of radiators.

Phantek's Pro M is undeniably a great looking case with a good list of features. The price might be a little steep, but you're paying for (and getting) quality.

Pros

  • Quality construction
  • Easy to build in
  • Full PSU shroud
  • Comes with 2x 140mm fans
  • Has a 5.25″ ODD bay

Cons

  • It’s a little on the expensive side

Editor's Rating: 4.6/5

Fractal Design have been making some of the best PC cases you can buy for a long time running. They consistently put out some of the most concise and quietest designed cases out there.

Their Define C is absolutely no exception. It's one of the easiest cases to build in, and one of the quietest you can buy, but the trade off is slightly restricted airflow. That said, the Define C comes with 2 of Fractal's 120mm Dynamic X2 GP-12 fans which are quite impressive.

q? encoding=UTF8&ASIN=B01M2CP50B&Format= SL250 &ID=AsinImage&MarketPlace=US&ServiceVersion=20070822&WS=1&tag=websitepcgame 20&language=en USFractal Design Define C

Header

Form

Mid-Tower

Motherboard Support

ITX, mATX, ATX

CPU Cooler Clearance

Up to 170mm

GPU Clearance

Up to 315mm

Fan Support

7x 120mm (2x 120/140mm front + top)

Radiator Support

Up to 360mm

Drive Bays

2x 3.5″ | 3x 2.5″

Front I/O Support

2x USB 3.0 | 3.5mm audio in/out

Weight

16.3lbs

Dimensions (L x W x H)

21.4″ x 11.4″ x 19.1″

Beyond the stock fans, the Define C can easily support a total of 7x 120mm fans, with some spots supporting up to 140mm (front and top). For liquid cooling, you can fit up to a 360mm radiator in the front of the case, up to 240mm on the top, or a 120mm in the rear.

There are 2 versions of the Define C available. The pictured version that comes with a sound-padded side panel, and a windowed side panel version. The windowed model is a bit lighter, a little noisier (hardly noticeable), and works to show off your hardware much better.

So, if you're trying to build a silent PC that boasts a minimalist design without spending an insane amount of cash, the Define C should not be overlooked.

Pros

  • Great sound dampening
  • Full PSU shroud
  • Very easy to build in
  • Sturdy Construction
  • Good cable management (incl. rubber grommets)
  • Comes with 2x 120mm fans
  • Great liquid cooling support (custom and closed loop)

Cons

  • Top-mounted front I/O

q? encoding=UTF8&ASIN=B077G34G9W&Format= SL250 &ID=AsinImage&MarketPlace=US&ServiceVersion=20070822&WS=1&tag=websitepcgame 20&language=en USCorsair Carbide Spec 02

Editor's Rating: 4.5/5

Corsair's Carbide Spec 02 has been my most recommended and most used mid-tower ATX case for a long time - and not without reason. Thousands upon thousands of new builders have started with this case based on my recommendation and I haven't heard a single complaint about it yet. Beyond that, I've personally used it in over a dozen builds and have never had anything to complain about.

Header

Form

 Mid-Tower

Motherboard Support

ITX, mATX, ATX

CPU Cooler Clearance

Up to 157mm (most 160mm coolers will work)

GPU Clearance

Up to 420mm

Fan Support

6x 120mm (2x 120/140mm front)

Radiator Support

Up to 240mm

Drive Bays

3x 3.5″ | 2x 2.5″

Front I/O Support

2x USB 3.0 | 3.5mm audio in/out

Weight

12.6lbs

Dimensions (L x W x H)

19.7″ x 8.6″ x 16.9″

Not only is the Carbide Spec 02 really easy to build with, but it comes with everything you'll need and won't cost you an arm and a leg.

With the Spec 02 you're getting 2x 120mm fans, 1 being lit by red LEDs and the other being a standard black fan. This allows for a good positive airflow setup (considering GPU airflow) right from the get-go which is ideal for most people. However, there's room for another 4 fans and even up to a 240mm radiator for liquid cooling - so you have lots of options.

The downsides are few and far between, but they do exist. One of which is the lack of rubber grommets in the cable management slots, but it's not a tremendous issue and won't affect performance. Another downside that's relatively subjective is the placement of the front I/O panel, they're found on the top of the case which some people may not like.

All-in-all, Corsair's Carbide Spec 02 is a case you should consider without a doubt. It's a great entry-level option as far as mid-tower ATX cases go and you won't be disappointed.

Pros

  • Sturdy construction
  • Compact for a mid-tower case
  • Easy to build with
  • Comes with 2x 120mm fans

Cons

  • Top-mounted front I/O
  • No rubber grommets
  • Window scratches easily
  • No PSU shroud

Conclusion

Whether you’re looking for a completely silent case, or one that just looks good, I’m sure you were able to find it on this list. Keep in mind that most cases have multiple color options for the chassis, so be sure to check for that if you’re not a fan of the pictured color scheme!

From the Corsair Spec 02 all the way up to the amazing be quiet! Dark Base 700, this list is by no means exhaustive. The amount of cases out there is seriously astronomical and this list could have easily been top 50 as it was top 5.

That being said, since there are simply so many good cases, I have to make some honorable mentions.

Honorable Mention #1: Corsair 570X
Honorable Mention #2: Phanteks P300
Honorable Mention #3: Lian Li Alpha
Honorable Mention #4: Thermaltake View 31
Honorable Mention #5: Cooler Master MasterCase H500M

That’s it for my list of the top 5 best mid-tower ATX PC cases! If you felt that a really amazing case wasn’t mentioned that should have been, let me know in the comment section below! Just keep in mind, these were only mid-tower ATX cases; here’s our top 5 best mATX cases.

If you have any questions, don’t hesitate to leave a comment!

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Phillip
Phillip
June 22, 2021 8:40 pm

Greetings. Just wanted to say thank you for your amazing website. You provide some of the very best information for dunces like me who know next to nothing about PC builds, are trying to put together a decent gaming rig, and have a very limited bank account. Already, I’ve found several options for good cases, all under $100, and I’m very hopeful I’ll be able to put together a dynamite rig for the lowest amount humanly possible (unless, of course, I’m able to locate a source that provides used parts in excellent condition – but not holding my breath)

The one and only suggestion I have is that perhaps you should offer 2 examples of extreme builds. One being the absolute best that can be assembled; the other being the most extreme, most economical that can be assembled. Just to give the viewer an example of what can be done. Because therein, if desired, the viewer can then pick out only certain elements of those builds to assemble their own rigs.

Again, thank you for your excellent, informative website.

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