cmw16gx4m2z3600c18

Not sure if this is the proper place to ask but any thoughts would be great. So I recently purchased a pack of 2x8gb 3600mhz ram (CMW16GX4M2Z3600C18) and due to a mix-up I recevied 2 packs at the end instead of just one, so now I have 2 packs of 2x8gb RAM. They're both the exact same model, but...