So I've picked out most of my parts but I have a few questions about compatibility of RAM, motherboard and cpu.
The motherboard specs say it supports:
Memory Type
DDR4-2133
DDR4-2400
DDR4-2666
and Memory Speeds Supported:
DDR4 3466 O.C., 3200 O.C., 3000 O.C., 2933 O.C., 2800 O.C., 2666, 2400...