Here is a review of the , focusing on what you need to know before reading the manual or setting it up.
(If you need exact specs for your exact SKU, check the label on the back or the formal PDF manual for that SKU.)
The OSD joystick is on the bottom-right rear. Press the joystick to open the main menu. The new manual rearranges the menus. Here is the correct hierarchy:
For 4K resolution at 144Hz or higher, you must use the included DisplayPort cable or a certified Ultra High Speed HDMI cable. Older HDMI 2.0 cables will limit you to 60Hz.