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Corsair - Carbide Series 300R Windowed ATX Mid Tower Case

( 4.4 Average / 48 Ratings )





Carbide Series 300R Windowed

Part #

300R Windowed
(or) CC-9011017-WW




ATX Mid Tower

Includes Power Supply


External 5.25" Bays


Internal 3.5" Bays


Motherboard Compatibility

ATX, Micro ATX, Mini ITX

Front Panel USB 3.0 Ports


Maximum Video Card Length

450 mm / 17.717"


485 mm x 210 mm x 449 mm

Completed Builds Using This Part

See All Completed Builds


Merchant Base Promo Shipping Tax Availability Total
Corsair $119.99 Out of stock $119.99+

Price History (Excluding Tax) History:


Mikes0404 10 points 45 months ago
from completed build Kicking It Old School

Lots of room, lots of spots for fans. Love it.

Dazz 3 points 45 months ago

Love the case, no issues at all, window is huge and makes it nice and easy to see everything working inside. The build.quality is great and it had plenty of space for everything.

dragunzonline 6 points 44 months ago
from completed build The Half-Blood Prince

When my 970 arrived it didn't fit in my original case the CM storm scout so when faced with buying a new case or returning my 970 I chose to buy this case and it has served my darn well with no major issues besides lack of space behind the motherboard tray.

P.S. anyone willing to tell me how to clean the front dust filter on this thing is awesome!

SimS95 14 points 42 months ago
from completed build Gaming PC Project 2015

This case is surely not the best in materials, but you can put a GPU long up to 450mm inside! You can also manage the cables pretty good

AlchemistZero 18 points 40 months ago
from completed build Blue Nights -_-

Personally not enough room not the cases fault though, love the filter space in front so my intake can really breath and airflow is great highly recommend for a mid tower build.

_DBHD_ 28 points 34 months ago
from completed build My Gaming PC (2016)

The case is a pleasure to work in! With lots of room to work with it can make a novice PC builder's first time way easier. This case can support up to 7 120mm fans making airflow great! As for cable management behind the case it is quite roomy and easy to work in. A thing to watch is installing fans on the top of the case, I found it quite difficult to get the fans flush with the mesh surface, but after some perseverance, I did it :).

gsxrsp0rt 10 points 33 months ago

The case isn't as sturdy as I read. Its better when everything was installed, but still feels less rigid than my old NZXT Tempest 210.

I could not mount the Corsair H60 with the fan on the inside. The two 140mm top fans don't leave enough space to mount the radiator fan between the rear exhaust port and the radiator. I ended up putting the fan on the outside of the exhaust. I suppose I lose a little CFM from the grate, but I'm not sure how much that matters.

Similarly, I was tempted to mount a larger 280mm CPU cooler but glad I didn't because there wouldn't have been enough space to mount that either. The motherboard is too high to fit both the fans and radiator. Similar to the rear exhaust issue.

Also, the top 5.25" bay prevents the 140mm fan from mounting by about 2cm. I had to drop my DVD writer to the middle bay slot to fit my fans.

Lastly, the top grate where you mount the fans has pre-cut holes for both 120 and 140mm fans. Once I mounted my 140's I removed the paper grommets for the 120 spots, but you can still see where it was cut. Not a huge issue and you can't notice it unless you know its there or look closely. As I built it, I noticed it, and now it bothers the perfectionist in me.

It is a nice looking case, and any ONE of these issues I would still give it 4, maybe 5 stars. But there was just too many little issues to warrant more.

Boith 14 points 32 months ago

I know it's an older chassis, introduced a few years ago, but the 300R is still a special case to me. Its industrial, blue collar looks got me. It's also got a good amount of features (tooless bays, good airflow, and a windowed side panel to show off your rig). I even managed to get it cheaper than usual. Couldn't be happier.

smcgothboy 3 points 31 months ago
from completed build Second Build: Leftovers

Its a little on the small side considering it was originally intended for a AIO water cooler the top is very close to where the motherboard sits and so it doesn't really come across as an ATX case more of a mATX. Still good quality and fun to work with.

catkaichen 4 points 30 months ago
from completed build Alpacarama

It's not bad, I kind of wish I went for something more aesthetic though. Otherwise everything fits (with some difficulty in terms of the GPU) and was easy to assemble. The window is nice and simple, I might even laser etch something on it.

Also I wish it came with covers for the side and top for those who aren't using more fans. It's dust galore otherwise. I keep it covered when not in use.