Hey guys 

I'm looking to add a HDMI port to a 7070 Micro 

Currently I have 2 x DP and I am looking to run a 3rd screen

In the manual it lists - . DisplayPort/HDMI 2.0b/VGA/USB Type-C Alt-Mode (optional)

There is a knock out blank for the port at the back of the chassis , Can anyone advise on part numbers please ?

Tech support only offer Graphics cards for the SFF models which dont fit 

Any advice much appreciated