3 Things to Know About the Gigabyte B550 AORUS PRO’s PCIe Slots
- The primary x16 slot runs at PCIe 4.0 x16 from the CPU, giving your graphics card full Gen 4 bandwidth.
- The second x16 slot drops to PCIe 3.0 x4 through the chipset, so it is fine for storage or other add-ons but not ideal for a second GPU.
- Two PCIe 3.0 x1 slots handle smaller expansion cards, keeping Gen 4 reserved for your main GPU.