6 Pin Polarized Header. Once the header is wired into a breadboard correctly, you simply plug any Olimex Programmer with ICSP onto the header and burn the code on the PIC. Very fast, very easy. It is a right-angle header so you can straighten out the legs and have enough pin length for breadboard insertion. The header is polarized to prevent incorrect attachment of the ICSP plug. Find out how to wire it here!