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Question USB are not being detected in New PC Build

Jul 2, 2020
I have just built a PC. After building it, I plug the cable from the PSU to the Plugging port on the wall. After plugging, I insert the USB cable of my Keyboard & Mouse but the Keyboard as well as the Mouse were not showing Light. But after inserting the USB (Charging) Cable of my Mobile in the USB Port and connecting it to my Mobile, My Phone was charging. So I recognize that there was no fault with the USB ports both from the front panel as well as from the rear IO panel. So please anyone help me ? and also it was not recognizing my pendrive which was Windows 10 Bootable to install Windows in it.

My Computer's SPECS :

Ryzen 3 2200g
Asus Prime B450M-A
Adata DDR4 8GB (2x4) 2400Mhz Ram
Which power supply are you using?

check the correct fitting of the ATX I/O blade

update the BIOS within BIOS using ezflash and an USB flash drive in a blue USB port on the back, try the others as well if it doesn´t recognize the drive

use a PS/2 keyboard

Does it post normally? BIOS/post messages on monitor visible?