Asus PRIME Z790-P D4 Manual page 23

10. USB 2.0 headers
The USB 2.0 headers allow you to connect USB modules for additional USB 2.0 ports.
The USB 2.0 headers provide data transfer speeds of up to 480 Mb/s.
A B
DO NOT connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
• The USB 2.0 module is purchased separately.
• USB_E1 port, USB_E2 port, USB_E3 port and USB_E4 port share the bandwidth.
PRIME Z790-P D4
USB_E12
A
USB_E34
B
PIN 1
1-13