Any 1 know if this will fit a nzxt source 210 case?
I don't think it would innately work.
From looking at the pictures/specs on newgg, it seems the Source 210 doesn't have enough clearance for the corsair h100i to fit above the mobo (the fans would hit the mofset heatsinks or ram). You could modify your case to make it work, but that seems like a lot of effort.
I know the H80i fits in the source 210, you could try that one!