DoctorEXE6 years ago000Hi! Is it B1 or B0 version? It is very important.upolaris6 years ago011 Helpful answerIt is ASUS RT-AC66U (you called this version “B0”) with USB 2.0 2x, according to data sheet https://www.asus.com/us... ASUS RT-AC66U B1 It has USB 2.0 1x and USB 3.0 1x, according to data sheet https://www.asus.com/ch-de...Comment