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Fractal Design - Define S w/Window ATX Mid Tower Case

( 4.6 Average / 42 Ratings )



Fractal Design


Define S w/Window

Part #





ATX Mid Tower

Includes Power Supply


Internal 2.5" Bays


Internal 3.5" Bays


Motherboard Compatibility

ATX, Micro ATX, Mini ITX

Front Panel USB 3.0 Ports


Maximum Video Card Length

425 mm / 16.732" With Drive Cages
450 mm / 17.717" Without Drive Cages

Completed Builds Using This Part

See All Completed Builds


Prices for this part are not available.

Price History (Excluding Tax) History:


Cloudz2021 28 points 45 months ago
from completed build Define S Air Cooling build

Plenty of space, rubber grommets in all the right places, hard drives out of the way mean there's nothing obstructing the airflow you need for your GPU/CPU. There's also plenty of space for watercooling and more than enough space for air cooling with room for 8 140mm fans. Plenty of clearance space for large CPU cooling towers too.

The screen scratches extremely easy and I do wish there were more grommets at the top or that the sole grommet at the top was a bite wider.

Jamesflo 21 points 44 months ago
from completed build Penguin Build! (First Official)

At first I was worried about not having optical bays but I can't remember the last time I put a cd into anything. This case is amazing and do not regret buying it. If you want a lot of room with amazing cable management or just want to throw in a liquid cooling system you have no problem!

GAROLDonPC 29 points 44 months ago
from completed build Neptune

Cannot get enough of this case in my opinion the best mid tower on the market.

l13199l 23 points 43 months ago
from completed build Deep Sea Creature

Superb case. The price, features and fans with this case are all pretty much right, best case on the market in this price range IMO

phdguy 33 points 42 months ago
from completed build Blue Sapphire

I freaking love this case! So much room for activities! I was never planning on adding and optical drive, and this case has lots of room for my massive GPU size. The cable management on the back made life so much easier. Plus is has sound dampening, and I can't really hear it at all with my headphones on. Highly recommended!

mtrapuzz 115 points 40 months ago
from completed build Fractal Design Define S (Retired)

I believe a case is the most important part in any build because you see it all the time and it ties everything together. Therefore, I don't really spare any expense when it comes to cases, but luckily this one was really cheap. There are some better cases out there that I myself probably like better (Lian Li PC-08), but they all come with too many downsides. The Define S really has no draw-backs. I believe this case is the best bang-for-buck water cooling case out there right now. It is compact enough, yet you can fit multiple radiators, pumps, reservoirs etc. I don't think there is another case out there that meets my requirements as this one does.

harr1847 33 points 40 months ago
from completed build Oculus-Ready Home Computer

This is a pretty large case, which kinda sucks sitting on my desk, but I've really been wanting to get into watercooling and this case will provide that opportunity for me. I wish I had waited about a week though since it dropped in price.

Docking a star for the large footprint. I would've preferred something taller and not as long.

rawlingsheart 12 points 40 months ago
from completed build Black Friday 2015 Build

Case - I wanted a windowed case because I plan on adding LED fans and strips later on and wanted to show off my build and this case was just what I wanted. It is also very very quiet and spacious. The case was made for adding water cooling so not having one made putting everything in easier.

vagabond139 16 points 39 months ago
from completed build Windstärke V1

Its a semi quiet case, the non Window version is quieter due to more sound. The case is very open so it has a ton of airflow and it supports a 420MM rad and a 360MM rad and a 140MM rad, that is as much as $150 cases. The only real downside when it comes to the case is the lack of room for easy cable management and it only holds 3 HDD's.

USA602 13 points 39 months ago
from completed build First PC build

Extremely well built, and very affordable. Cable management very easy.