This is the Raspberry Pi adapter cable for converting your standard full-size HDMI cable to Mini-HDMI for use with the Raspberry Pi Zero.

Your existing HDMI cable plugs into the female HDMI end, and the Mini-HDMI end plugs into your Raspberry Pi Zero. Ideal for those who already have an HDMI cable at the length they need or have cables already secured in place. The cable is ~15cm long.