Aaj Tech Trading Corporation is trustworthy entity betrothed in supplying the best quality Polarizing Key. This key prevents the chances of wrong plugging of a connector by mistake. Most people use this key for precise orientation or connection to the motherboard pin outs by blocking header connector hole. It is inserted at a certain location among multiple connector contacts. Ideal for pitch terminal housing, the key can plug-in into PCB header or pin outs easily because of its dimensional accuracy. Each key is manufactured using shock and water resistant materials. One or more pins on the header of this Polarizing Key indicate for correct orientation.