The Z890 Taichi Aqua has two USB4 Type-C/Thunderbolt 4 ports, four USB 3.2 Gen2 Type-C ports, and four USB 3.2 Gen1 Type-C ports. It also has provision for two USB 3.2 Gen 2x2 Type-C ports up front, bringing the total number of USB-C ports to 12. And while you might be forgiven for thinking that it’s sacrificing USB-A ports, the Taichi Aqua still supports four USB 3.2 Gen1 Type-A and four USB 2.0 ports on the front I/O. This gives you a total of 20 USB ports, allowing you to connect as many USB devices as you want to your PC.

I’d bet the thunderbolt ports are individual and then the subsequent ones are hubs per generation