2PM Russian type military connector, which is made according to the Russian Military Standard , widely used for the electricity connection and signal transfer, it's special structure and design can aviod the shortage of other similar connectors, for example, the screw & hole for the wire on the outer shell, it can used more convenient .The inner insulation and pins structure are also enhance its stability and reliability, this series of connectors can also be waterproof, so it can used on outdoor equipments, Its special design and characteristics have got good reputation from the market.