Portable USB monitors are no stranger to Computex, but this year, ASUS brought us something a little more ambitious: the world's first 240Hz portable gaming monitor. The ROG Strix XG17 features a 17.3-inch 1,920 x 1,080 IPS LCD, and it's a high-end affair that offers an adaptive refresh rate of up to 240Hz, along with a 3ms response time. In fact, this is apparently the same speedy matte panel made available on ASUS' Strix Scar III and Hero III laptops. The monitor also comes with built-in stereo speakers, a magnetic kickstand flip cover plus an internal battery. The latter is good for three hours when maxed out at 240Hz, and it supports Quick Charge 3.0 plus USB Power Delivery.