There is a dot on the screen just below and to the right of center. It doesn't fit anything on the back and is compatible with every program I use. You can get the best product for your money.
LG 27MP59G-P 27 inch Monitor with FreeSync, 75Hz Refresh Rate, and 1080p HD Resolution
93 Review
Sceptre C325B-144R: Advanced FreeSync HD Display with Wall Mounting and Tilt Adjustment
94 Review
Dell SE2416HX Screen LED Lit Monitor 23.8", 1920X1080P, HDMI
93 Review
Dell SE2216HV LED π» Monitor with 60Hz Refresh Rate
101 Review