Shrouded bnc male to red and black 4mm stackable plugs 1m truconnect a 7 204 this quality adaptor converts double banana jack test instruments to bnc male coaxial configuration the 4mm banana plugs are stackable for added shielding protection the adaptor is fully shrouded the bnc centre contact is gold plated on brass for low contact resistance truconnect a 7 204 shrouded bnc male to red black 4mm stackable plugs 1m