Fiber optic adapter, sometimes also called coupler, is a small device designed to terminate or link the fiber optic cables or fiber optic connectors between two fiber optic lines.

Features:
1.Low insertion loss, high return loss
2.Good compatibility
3.High precision of mechanical dimensions 
4.High reliability & stability 
5.Ceramic or Bronze Sleeve 
6.PC, APC, UPC optional 
7.Simplex / Duplex