What kind of fiber optic patch cords should be used for 40G multimode optical modules? Option 1: Use OM3 patch cords, advantage: OM3 patch cords have low cost. Option 2: OM4 fiber optic patch cable, Advantage: OM4 attenuation is lower, longer transmission distance. Vandesail specializes in providing high-quality wire products, serving global customers across various industries. WEB:https://vandesail.co/