Axiom 100GBASE-LX4 QSFP28 Transceiver for Cisco - QSFP-LX4-100G - For Data Networking, Optical Network - 1 x LC Duplex 100GBASE-LX4 Network - Optical Fiber - 1270 nm, 1330 nm Wavelength - Single-mode, Multi-mode - 100 Gigabit Ethernet - 100GBase-LX4 - 100 Gbit/s - 2 km Maximum Distance: