... PC,UPC,APC)/(SM,MM)/(Duplex,Simplex)All the types of patch cord available in both single-mode and multimode ... Light CharacteristicOperating Wavelength850nm&1300nm1310nm & 1550nmTypical Insertion Loss0.5dB & 0.3dB0.2dB & 0.2dBTypical Return Loss--PC≥45dB,UPC≥50dB,APC≥65dB ... to the customer's requirementProduct and company Pictures Low insertion loss LC-LC/APC /SM/simplex fiber optic patch cord