Features Compact designTelcordia, TIA/EIA,IEC compliance High precision alignment Low insertion and return loss Self adjusting metal panel clips (for LC adapter) Duplex adapter SC footprint (for LC adapter) Screw-type locking stable and reliable (for FC Adapter) Square Type design (for FC Adpater) Threaded with nuts or snap-in coupling (for ST Adapter) Body zinc alloy for long life ( for ST Adapter) Available for D-shaped and Rectangular mount (for ST Adapter)