16 usb in total, Unable to find a product to install in the front of case to out put the header usb's?
technically its 19 USB Ports as there are 10 on the rear and headers on the inside for another 9 ports that vary.
AMD X570 Chipset
1x USB 3.2 Gen 2 10Gbps Type-C internal connector <-- thats the single USB-C metal surrounded connector below the 24pin power Connector
4x USB 3.2 Gen 1 5Gbps ports are available through internal USB connectors <--- there the 2 USB 3.0 style 20-Pin Headers on the board
2x USB 2.0 ports on the back panel <-- thats the 2 Black Ports on the Rear I/O
Asmedia® 1074 Chipset
4x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel <--- thats the 4 Blue Ports on the Rear I/O
GL850G Hub
4x USB 2.0 ports are available through the internal USB connectors <--- there the 2 lower USB 2.0 9-Pin Headers on the board
AMD Processor
4x USB 3.2 Gen 2 10Gbps ports (3 Type-A ports and 1 Type-C port on the back panel <-- thats the single USB-C on the Rear I/O and the 3 RED Ports on the Rear
thats a Total of 19 Ports
1+4+2+4+4+4=19
made up of
6 x 2.0 ports
8 x USB 3.2 gen 1 5GB/s Ports
3 x USB 3.2 Gen 2 ports
2 x USB C Ports
you can buy USB header to either PCI-E or 3.5 inch bay adapters to get the Headers connected to the board if you want that as there are 5 internal Headers to populate