... optic patch cord 2,Prompt Delivery 3,CE,Rohs,FCC Aprroval 4,DHL,Fedex,UPS,TNT Shipment ST--ST PatchcordThe fiber optic patch cord are ... mainly used on patch panel or for ... materialPVC, LSZHCoresSimplex, duplex, 4cores, 6cores, 8cores,12cores, etc. LSZH optical patch cord