This is a Cisco SFP-H10GB-CU3M compatible 10 G Base-CU SFP+ to SFP+ direct attach cable that operates over passive copper with a maximum reach of 3.0m (9.8ft). It has been programmed, uniquely serialized, and data-traffic & application tested to ensure it is 100% compliant & functional. Our direct attach cables are built to comply with MSA (Multi-Source Agreement) standards. This direct attach cable is TAA (Trade Agreements Act) compliant. We stand behind the quality of our products & proudly offer a limited lifetime warranty.