This is an Arista Networks® compatible 100GBase-AOC QSFP28 to 4xSFP28 direct attach cable that operates over multi-mode with a maximum reach of 50.0m (164.0ft). At a wavelength of 850nm, it has been programmed, uniquely serialized, and data-traffic and application tested to ensure it is 100% compliant and functional. This active optical cable is TAA (Trade Agreements Act) compliant. We stand behind the quality of our products and proudly offer a limited lifetime warranty.