Help with a choice of cooler for lga

In General bought a motherboard AsRock extreme6 z170 and in addition cooler Thermaltake Riing 12 Silent Blue, which did not fit, specifically the rear plate, which turned out the connectors were not included, although stated that it is suitable for lga 1151. Tomorrow I'm going to take the Scythe Mugen MAX, and here I think, does it fit!? Help who faced a similar problem and what cooler to take!?