Allied Telesis 1000LX Gigabit Interface Converter (GBIC), 40km, 1000 Mbit/s, 1000Base-LX, 1550 nm, IEEE 802.3z, Gigabit Ethernet, GBIC Allied Telesis 1000LX Gigabit Interface Converter (GBIC), 40km. Maximum data transfer rate: 1000 Mbit/s, Cabling technology: 1000Base-LX. Wavelength: 1550 nm. Compliance industry standards: IEEE 802.3z. Data link protocols: Gigabit Ethernet, Interface: GBIC, Form factor: Plug-in