Supermicro X9SCM-iiF

This is an Micro-ATX board on the LGA1155 socket. Expansion covers 2 M.2 slots and 2 PCIe slots. Memory support covers 4 DDR4 slots up to 32GB total. Match the socket to your CPU generation first; chipset features second.

At $301.73 it sits in the high-end motherboard bracket. Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and compare current motherboard prices across retailers. Support and warranty service run through Supermicro, with terms that vary by region. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.