Best Mini ITX Motherboards For Intel Core i9-9900k
GIGABYTE Z490 I AORUS ULTRA Socket 1200 USB 3.2 Intel Motherboard Small Form Factor Black Z490 I AORUS ULTRA - Best Buy
Amazon.com: MSI Performance Gaming AMD Ryzen 1st, 2nd, and 3rd Gen AM4 M.2 USB 3 DDR4 HDMI Display Port Mini-ITX Motherboard (B450I Gaming Plus MAX WiFi) : Everything Else