The Gigabyte B450M DS3H keeps PCIe simple with Gen 3 and a pair of x1 slots

What PCIe slots are available on this motherboard?

The B450M DS3H is a budget board and it doesn’t pretend otherwise. You get one PCIe 3.0 x16 slot for your graphics card and two PCIe 2.0 x1 slots for smaller expansion cards. Nothing fancy, no Gen 4, but it covers the essentials without any surprises.