asus b250f usb 2 header???

[Abdelrahman_3]

i want to connect my 2 usb 2 to the board
but the header looks strange

my board http://prntscr.com/fwfo32
this is the only header i can found that looks a bit like the normal one http://prntscr.com/fwfocx

usb2 header should look like this http://prntscr.com/fwfomq

but in mine there is a bigger space

 

[Suztera]

Yes it is a USB 2.0 header, just doesn't have a plastic housing around it.
The ROG-EXT has a USB 2.0 header with extra pin for a certain function/feature.
Refer to your motherboard's manual for more information.

This one is a COM header:
http://prntscr.com/fwfocx