EXFO America Inc. RTU-310-2 Dual port device2x 10/100/1000 Mb Ethernet port2x Gigabit-Ethernet portIncludes:- 10/100 Ethernet & Gigabit-Ethernet Wire-speed Analysis (BERT & RFC 2544)- 110/220V AC power supplyMUST order one(1) FTB-859x SFP for optical Gigabit-E.