This Cisco® QSFP-H40G-AOC1M to Arista Networks® AOC-Q-Q-40G-1M dual OEM compatible 40GBase-AOC QSFP+ to QSFP+ active TAA (Trade Acts Agreement) compliant direct attach cable has a maximum reach of 1m (3.3ft). It is 100% Cisco® to Arista 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 Arista Networks®'s individual cables and is built to meet or exceed Cisco® and Arista 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.