Corsair H110 uses 140mm x 2 fans/rad
consider ur case is CM 690 II Advanced (USB 3) so top placement either opt for dual 120mm or dual 140mm....
so it's a go..no doubt...

to double confirm....u can check the top placement,if got extra and wider screw holes then confirm
btw mayb u can consider Corsair H100i....
H100i vs H110:
1.H110 better in term of cooling performances but with minimal figures (1-3c diff)
2.H110 lacks of Corsair Link Support (corsair link can act as fan control whether up or down the speed...but on selected fans only..
of coz bundled fans can support..worry not)
3.Corsair link is a mature monitoring software...with mind blowing interface/ease of use compared to Thermaltake etc
4.H100i can fit most cases with dual placement on top..not all cases can support dual 140mm....
*also H100i a bit cheaper, so can divert to a kfc meal at least hehehe

This post has been edited by huzzLEE_82: Sep 24 2013, 11:05 AM