Monster MCL FST2M 1/4 Stereo Female to Dual 1/4 Mono Male Cable Adapter Y-Adapter designed to link 1/4 St Male to (2) 1/4 Mono Female 24K gold plated connectors to minimize corrosion Exclusive rugged molded strain relief for lasting protection even after repeated use Features die cast barrel and protective shielding to block out RF and electrical/electromagnetic interference Advanced construction includes high-purity copper content