This Cisco SFP-H10GB-CU0-5M to HP 487649-B21 dual OEM compatible 10GBase-CU SFP+ to SFP+ passive TAA (Trade Acts Agreement) compliant direct attach cable has a maximum reach of 50cm (1.6ft). It is 100% Cisco to HP compatible and has been programmed, uniquely serialized, and data-traffic and application tested to ensure that it is compliant and functional. This direct attach cable will initialize and perform identically to Cisco and HP's individual cables and is built to meet or exceed Cisco and HP's specifications, and comply with MSA (Multi-Source Agreement) standards. We stand behind the quality of our products and proudly offer a limited lifetime warranty.