AMD Radeon HD 6850 issue

i know that this may sound stupid to some people, but i am a bit of a computer noob :D

On my new pc, the graphics card (AMD Radeon HD 6850) seems to have black plastic covering the hdmi and display port inputs. can i use hdmi through the port on the mobo? or are the pieces of black plastic just covers for the ports?

again, sorry if this is a stupid question :)
 
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