Question about chinese generic 7.1 usb sound card

Hi everyone, i hope someone has experience with this device is an usb sound card with two jack outs and two jacks in.
41lOgQXdUPL._AC_SY780_.jpg


what i would to know is if the jack are just connected in parallel or independent, the reason is i want the two mic inputs, its cheap so i should just test it ,but if i can avoid the waste.
I appreciate any help👍.