Asus TUF Z390-PRO GAMING - Expansion Slot Installation; PCIe Slot Identification and Types

TUF Z390-PRO GAMING
1-7
Chapter 1
1.1.5 Expansion slots
Unplug the power cord before adding or removing expansion cards. Failure to do so may
cause you physical injury and damage motherboard components.
Slot No. Slot Description
1 PCIe 3.0 x1_1 slot
2 PCIe 3.0 x16_1 slot
3 PCIe 3.0 x1_2 slot
4 PCIe 3.0 x16_2 slot
5 PCIe 3.0 x1_3 slot
6 PCIe 3.0 x16_3 slot