... five twist-pair ports, unmanaged typeF6-G2114 10/100/1000Mbps with four twist-pair ports and one fiber ... optic port, managed typeF6-G2014 10/100/1000Mbps with four twist-pair ports and one ... fiber optic port, unmanaged typeF6-G21B4 10/100/1000Mbps with four twist-pair ports and backup optic ... port, managed typeF6-G20B4 10/100/1000Mbps with four twist-pair ports and backup ...