Its a daughter board. Breakout #14 add screws, daughter board, flex cable to motherboard. [URL]#Shortcut_2 There are also Video card options. optiplex 3080 spec sheet  Quadro P620 73XT6 Full Height is the validatedworking card for MT that has 4 display port outputYou will need mini display port to HDMI. Quadro P620 Video 265379511324 Although 3080 has a USB type C port, apparently there is no video signal connected to that port. The only way to get video out is through One Optional 3rd Video Port (VGA/DP 1.4/HDMI 2.0b) to connect 3 monitors, either have the optional 3rd video port, or get a monitor that has DP in and DP out port and daisy chain it. optional modules hdmi vga dp serial MICRO optional modules hdmi vga dp serial  TOWER [IMAGE]
Hello On the OptiPlex 3080 MT, the way to output video is through: I.  One DisplayPort 1.4 (back)II. An HDMI 1.4 port (back)III. An optional 3rd video port (VGA / DP 1.4 / HDMI 2.0b) How can we add a 3rd video port?Is there a connection socket on the motherboard? Thank you in advance
OptiPlex 3080 MT: Optional 3rd video port