EXFO America Inc. TK-1-FTB-860GL FTB-1 Test Kit, including 10/100/1000 Electrical & 1000 Optical with 10 GigE Optical LAN/WAN DEDICATED LOOPBACK Ethernet Test ModuleEthernet Loopbacktesting including:- Single port 10/100/1000 Base-T Electrical interface- Single port 1000 Base-X opti