RJ11 6P4C Female to Ethernet RJ45 8P8C Male F/M Adapter Cable - 5pcs- (G7.23). 5pcs x RJ45 to RJ11 Adapter. Extend the length of Ethernet cable and suitable for gigabit ethernet. Size : 2 x 1.5 x 2.3cm / 0.8" x 0.6" x 0.9" (L W H).