No alloy was used in fastening the wires to the board but the use of a crimping method, which makes it more flexible and mechanically stronger. The crimps are well-engineered to be air-tight, preventing oxygen and moisture from reaching the metals, and causing corrosion. Thus, the connector can be easily removed from the head without holding the wires. Furthermore, it prevents the cables from being easily disconnected due to entangled routing or heavy loads.
