The LC fiber connector is comprised of a polymer body and use a 1.25mm diameter ceramic ferrule with either PC or APC end-face.
The ST fiber connector is comprised of a polymer body and use a 2.5mm diameter ceramic ferrule with either PC or APC end-face.
It is offered in MM or SM performances and different boot sizes, including 3.0mm, 2.0mm, 0.9mm are available.