As you are on Windows/PC you seriously may check out RME interfaces!
Those are among the very best on the market for audio with Windows/PC.
They are not the most affordable ones but definitely worth the money if
being on a Windows machine.
RME provide the best and most stable drivers for PC and they are always
on time with it. Highly recommended for professional audio on PC!
http://www.sweetwater.com/store/detail/FirefaceUCX
http://www.sweetwater.com/store/detail/Fireface802
http://www.sweetwater.com/store/detail/FirefaceUFX
http://www.sweetwater.com/c695--USB_...I6WyJSTUUiXX19
Manufacturers website.
http://www.rme-audio.de/en/
The best of success to you, VRW