This Cisco QSFP-40G-SR4 to Palo Alto Networks PAN-QSFP-AOC-15M dual OEM compatible 40GBase-AOC QSFP+ to QSFP+ active TAA (Trade Acts Agreement) compliant direct attach cable has a maximum reach of 15.0m (49.2ft). It is 100% Cisco to Palo Alto Networks 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 Palo Alto Networks's individual cables and is built to meet or exceed Cisco and Palo Alto Networks'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.