... .OM3,OFNR 4.RoHS compliant 5.Good quality & fast deliver MM Duplex LC/PC Fiber Loop Back Cable Features* Low insertion ... ,APC* Core Type:Single-mode(SM:9/125um),Multi-mode(MM:50/125um or 62.5/125um)* Cable Quantity:Simplex,Duplex ... , Return Loss Variability<5dBOperating Temperature-40°C~+75°CRELATE PRODUCTS MM Duplex LC/PC Fiber Loop Back Cable