GIGABYTE Z690 AERO G Review: Powerhouse For Creators - Tech4Gamers
The Gigabyte Z690 Aero G is a creator-focused motherboard packed with four PCIe 4.0 M.2 NVMe slots for speedy storage and PCIe 5.0 for GPU bandwidth.
Motherboards Explained: The AAFP - Overclockers UK
To use a PCIe SSD, the motherboard must have available PCIe slots and, for M.2 PCIe SSDs, an M.2 slot that supports PCIe.
Everything You Need to Know About PCIe 4.0
A pcie 4 x1 slot is a whole lot of bandwidth and could be used for any pcie card with minimal real world bottleneck.