RAM compatibility for iMac 5k Late 2015

Can somebody please confirm that this RAM will be compatible with a iMac 5k Late 2015?:

http://www.amazon.com/Crucial-Balli...60_SR160,160_&refRID=1Y1ECMN4790D383DX1A2# Ask

Some reviews state it works, others say it has caused issues. For whatever reason, I'm having a difficult time matching the exact RAM from crucial's compatibility site (http://www.crucial.com/usa/en/compa...k,-27-inch,-late-2015)-imac17,1#memoryResu lts) to the corresponding Amazon RAM (want to take advantage of my prime membership).

Any help would be appreciated.