The MDP-X is a Double Banana Plug with four isolation solder terminals. Top stack-up receptacles isolated from lower plugs. Ideal for insertion of matching network in laboratory VTM's signal generators, etc. Bright tin plated solder turret terminals for permanent noise-free connections. Banana plug and jack is made of brass (as per QQ-B-626) with nickel plated finish (as per QQ-N-290).