Axiom 40GBASE-SWDM4 QSFP+ Transceiver for MSA - Q40-SWDM4-AX - For Data Networking, Optical Network - 1 x LC 40GBASE-SWDM4 Network - Optical Fiber - 850 nm, 940 nm Wavelength - Multi-mode - 40 Gigabit Ethernet - 40GBase-SWDM4 - 40 Gbit/s - 0.15 km Maximum Distance: