MSI X399 SLI PLUS

This is an ATX board on the X399 chipset, sTR4 socket. Memory support covers 8 DDR4 slots up to 128GB total. Expansion includes 2 M.2 slots and 2 PCIe slots. Pick the board for its socket before anything else — chipset niceties come after.

At $1076.03 it sits in the premium motherboard bracket. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Warranty coverage follows MSI's standard policy — confirm regional terms on the listing. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.