Usb devices turns off the back on when booting the pc!

[jzbeast113]

I basically built a new computer with decent specs and i got a new keyboard as well the following specs include...
i7 8700k
corsair vengeance 2x8 (3200)
asus rog stric z370
650ww corsair power supply
logitech g810 orium spectrum
Now the problem is that whenever i first press the power button and boot up my pc all the usb devices (including the keyboard and my audio interface) power up but then after a few seconds when the pc is still booting all the usb devices suddenly go out (completely turn off) then suddenly get power back once im on the login screen for my pc. This is significantly weird since this did not happend with my previous pc that i bought. Does this problem happen because i built the pc wrong or is this completely normal?

 

[justin.m.beauvais]

This is normal. Completely normal. It will even still register keystrokes if you need to get into the BIOS.