Cooling system
Front: 2 – 120/140 mm fans (included is 1 Fractal Design Dynamic GP14 fan, 1000 RPM speed)
Rear: 1 – 120/140 mm fan (included is 1 Fractal Design Dynamic GP14 fan, 1000 RPM speed)
Top: 3 - 120/140 mm fan (not included)
Bottom: 2 – 120/140 mm fan (not included)
Side: 1 – 120/140 mm fan (not included)
Fan controller: 3 step fan controller for up to 3 fans
Dust filters: Bottom and front intakes
Water cooling compatibility
Front – 360, 280, 240, 140 and 120 mm radiators of all thicknesses (requires removal of drive bays)
Top – 420, 360, 280, 240, 140 and 120 mm radiators. (A thickness limitation of 55mm for both radiator + fan applies on 420, 280 and 140 mm radiators) (420 and 360 mm radiators require removal of the ODD bay) Bottom – 120 or 240 mm radiator (Use of radiators in the bottom position limits the PSU length to 165 mm)
Rear – 120 or 140 mm radiator
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http://www.fractal-design.com/home/product/cases/define-series/define-r5-blackhttp://www.newegg.com/Product/Product.aspx?Item=N82E16835181094 <----- 280mm by 51mm thick.This post was edited by Ghot on Aug 28 2016 06:48pm