can 2 140mm fans be mounted and fit under the top dust cover?
1505181
I believe you can only fit one 140mm fan. Two 120mm fans with no problem but not two 140mm fans.
1952211
yeah a 120mm fan can fit in the rear, idk about a 144mm tho. In the front i have a bitfenix 200mm fan in the front and i think that's all it supports. The case it self come comes with a stock 200mm fan in the front.
1419708
Yes, you can mount up to a 120mm fan at the front, although the aperature is just about right for a 92mm fan. I've got that one synchronized on the PWM fan speed control with the CPU fan in my case. My photo gallery includes a photo of the access vents on top with 120mm mounting holes. You can see the heatpipe CPU cooler fan is pushing air upwards, and another fan is exhausting out the back of the case. That's the only direction I could mount that CPU cooler, but it means the fan-blade weight plus the fan friction are both pulling down against the bearing. It will probably be the first fan I'll have to replace!
662058
Yes. There are 8 pre-drilled holes on the side panel. You can attach 2,4 inch fans.
2225106
A 140mm in the rear and the front has a 200mm. It will accept quite a few more as well. The fans are some of the best you can get
1674850
This would fit in the 5 120mm fan mounts, but not the 200mm fan mount on top, unless you rigged it oddly to do so.
1313113
I have two of these but in the two rigs I have the 120 & 200mm fans I have in them prevents these fans from kicking in on high.
482598
2 x 120 or 140mm fans can be installed on the top 2 x 120 or 140mm fans can be installed on the side 1 x 120mm fan can be installed on the front 1 x 120mm fan comes pre-installed on the back
605439
Either will work. The top has mounting holes for both 120mm and 200mm. Honestly, though, I'd recommend the 200mm fan. The bigger the fan, the more air it moves, AND the quieter it is.
2129962
Per the tech specs you can mount on the side either 1 200mm fan or 2 120/140mm fans. http://www.corsair.com/en-us/obsidian-series-550d-mid-tower-quiet-case
1169331
It has 3 fans one in back one on top and one in front. There may be enough room to fit one more 120 mm fan if you want
662059
Yes you can add two fans on the left side panel, but I don't recommend doing so because adding two fans on the side will obstruct the airflow.
15432
The case i have came with two 120 mm and one 200 mm fan installed & space for another 120 mm fan in front at the expense of 3 bays which I used for CD & DVD drives. Thre large fan offers ample ventilation. However if needed the extra 120 mm fan is easy to install with all parts needed. I keep it as a spare.
896870
you can fit one 200mm fan in the front and in the top such as this one http://www.amazon.com/Cooler-Master-MegaFlow-200-Computer/dp/B008G3OLRQ/ref=sr_1_1?ie=UTF8&qid=1421904577&sr=8-1&keywords=200mm+fan
662057
Yes, you can add two 120mm fans to the side panel. EDIT: Actually you can probably add any size but 120mm would makes the most sense.
896871
you can fit one 200mm fan in the front and in the top such as this one Cooler Master MegaFlow 200 - Sleeve Bearing 200mm Silent Fan for Computer Cases (Black)
1581123
The top can fit 120mm or 140mm. The back can fit 120mm or 140mm. The bottom can fit 120mm. The case info says that the top can fit three 120mm or two 140mm, but there is enough room and mounting holes to fit three 140mm on top. The case comes with three fans: two 140mm in front, and one 140mm in back. I have a total of six 140mm (three on top, one on back, two on front) and one 120mm (on the bottom).