Monster MCL FST2FM 1/4 Stereo Female to Dual 1/4 Female Mono Cable Adapter Y-Adapter designed to link 1/4 St Female 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