Have you ever wanted a dual-screen setup while working on the go? We usually settle for our single laptop screen, but this doesn’t have to be the case now that we have portable monitors. ASUS happens to make some of the best ones, and today, we found an excellent deal on one of the most popular ones. Right now, you can catch a 33% discount on the ASUS ZenScreen MB166B, bringing the price down to $99.