This is a Micro HDMI adapter with Crowpi2, the function is to transmit audio and video signals through this HDMI, use it to connect Raspberry Pi 4B and Crowpi2.
Note: Not includes the Raspberry Pi board.
Use the steps shown below
Step 1: Connect the adapter board and the cable.
Step 2: Connect the other end of the cable to the Crowpi2 Raspberry Pi bin's cable terminal.
Step 3: Insert the Raspberry Pi 4B into the Raspberry Pi compartment and connect the Micro HDMI adapter.