Motherboard with DDR3 and DDR4 Slots and M.2

[Mason64]

Hi

Do you guys know if any motherboards have the support for DDR3 and DDR4 and M.2 support - Am looking to build a testing rig - dont mind if its AMD or Intel but i want something i can use to test the m.2 and both types of memory.

Thanks in advance.
Mason64