As for the input options, you're looking at a pair of HDMI 2.1 ports, a single DisplayPort 1.4 input, and a 3.5mm audio-out jack. Acer's other new QD-OLED display is the Predator X27U X1 ...

Input-wise, this Acer Predator X27U comes with two HDMI 2.0 ports, along with a DisplayPort 1.4 output, which you’ll need to use to get the top refresh rate here – HDMI ports are capped to 144Hz.