A:Answer DVI-D, HDMI 1.4 (maximum support of 3840 x 2160 @ 30 Hz only), Displayport 1.2 and mini Display Port 1.2. Using either one of the last two results in full support of the resolution at the rated 60Hz. Definitely NEED Display port, otherwise you shouldn't buy this monitor as you won't take advantage of the resolution and refresh rate. If you prefer HDMI, the Acer BM320 is an updated version of this panel with 5ms input lag instead of 6ms, ultra slim bezels on the top and sides and it updates the HDMI port to 2.0 so it would support 3840 x 2160 @ 60Hz.