The copper heatsink is for better heat dissipation and GPIO header makes it easy to connect the GPIO ports. Case for Raspberry Pi Zero 2 W Case/Zero W, with Aluminum Case,20Pin GPIO Header,Micro USB to OTG Adapter,Copper Heatsink,ON/Off Switch Cable (Black).
The copper heatsink is for better heat dissipation and GPIO header makes it easy to connect the GPIO ports. Case for Raspberry Pi Zero 2 W Case/Zero W, with Aluminum Case,20Pin GPIO Header,Micro USB to OTG Adapter,Copper Heatsink,ON/Off Switch Cable (Black).