Before Buying an ATX Motherboard, You Should Know These Facts
With four M.2 slots and comprehensive PCIe 5.0 support, the motherboard delivers incredible storage flexibility and future-proof expansion options.
What are PCIe Slots and Their Uses? - Beginners Guide
Motherboard PCIe slots serve as the critical backbone for expanding computing capabilities, providing high-speed connectivity for a variety of essential components.
MSI B550-A PRO
The MSI B550-A Pro motherboard supports 3rd gen AMD AM4 processors, features up to 4 x DDR4 memory slots, PCI-E 4.0, PCI-E 3.0, 2 x M.2 slots, 6 x SATA 6GB/s ...
Mua MSI MAG X670E Tomahawk WiFi Motherboard, ATX - Unterstützt ...
Connectivity is also strong and the motherboard gets three PCIe 5.0 x16 slots, two PCIe 4.0 x16 slots, & three M.2 Gen 5.0 x4 slots & rich I/O such as 10GbE and 2.5 GbE LAN Ports.