Asus Nvidia GT220, HDMI input or output?

I had a Asus Nvidia GT220 graphics card, and i notice it comes with hdmi, i checked the back of my computer and i saw this hdmi slot, is it an hdmi input or output? (im trying to setup recording my xbox 360 in hdmi)|||output.|||i dont know but i guess for making some points its input sorry if its wrong thanxx for reading and be a muslim