Asus H110I-PLUS D3/CSM

This is an Mini-ITX board on the H110I chipset, LGA1151 socket. Memory support covers 2 DDR4 slots up to 32GB total. Expansion covers 2 M.2 slots and 2 PCIe slots. Going ITX means fewer slots, so map out storage and add-in cards before committing.

At $20.47 it sits in the budget motherboard bracket. PlanMyPC's builder flags compatibility problems automatically and adds the part's price to your build total. Warranty coverage follows ASUS'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.