Acer has introduced yet another spin-off in the Predator X34 series. Arriving next quarter as the Predator X34 X, the 34-inch OLED gaming monitor jumps to a 240 Hz refresh rate, which it combines with a 1440p resolution and 0.1 ms response times. The Acer Predator X34 X is also VESA DisplayHDR True Black 400 certified, among other features.