Gigabyte B550 Aorus Master has three working PCIe Gen4 M.2. SSD Slots
Amazon.com: GIGABYTE AORUS Gen4 5000E SSD 500GB PCIe 4.0 NVMe M.2 Internal Solid State Hard Drive with Read Speed Up to 5000MB/s, Write Speed Up to 3800MB/s, AG450E500G-G : Electronics
Build Help: B650 Aorus Elite AX M.2 install, can I take off that little black tab to screw my M.2 down? : r/pcmasterrace
The GIGABYTE Aorus RGB M.2 SSD Review: Nothing Is Too Small For RGB LEDs
Amazon.com: GIGABYTE AORUS Gen4 5000E SSD 500GB PCIe 4.0 NVMe M.2 Internal Solid State Hard Drive with Read Speed Up to 5000MB/s, Write Speed Up to 3800MB/s, AG450E500G-G : Electronics
AORUS NVMe Gen4 SSD 1TB Key Features | SSD - GIGABYTE Global