Features: Insertion Loss <0.2dB Return Loss >55dB Temp Range -40℃~+85℃ Durability ≤0.2db after 500 cycles. Phosphor Bronze and Zirconia Sleeve optional FC/PC,FC/APC,SC/PC,SC/APC,ST,LC Duplex Adapter(Available) Applying Area Widely used in Optical Distribution .Fiber(ODF), optical communication equipments, instruments and so on. It has a stable capability. We provide different shapes of Fiber Optic Adapters,ensuring the best connection capability..if any needs ,please contact us.