SC SpecificationsInsertion Loss : ≤ 0.20dB for Zirconia SleeveSleeve/Ferrule Withdrawal Force : 2.0N ~ 5.9N (200gf ~ 600gf) LC SpecificationsInsertion Loss : ≤ 0.20dB for Zirconia SleeveSleeve/Ferrule Withdrawal Force : 1.0N ~ 2.5N FC SpecificationsInsertion Loss : ≤ 0.20dB for Zirconia SleeveSleeve/Ferrule Withdrawal Force :2.0N ~ 5.9N ST SpecificationsInsertion Loss : ≤ 0.20dB for Zirconia SleeveSleeve/Ferrule Withdrawal Force : 2.0N ~ 5.9N