This Arista Networks CAB-Q-Q-1M to IBM 49Y7891 dual OEM compatible 40GBase-CU QSFP+ to QSFP+ passive direct attach cable has a maximum reach of 3.0m (9.8ft). It is 100% Arista Networks to IBM compatible and has been programmed, uniquely serialized, data-traffic and application tested to ensure that it is compliant and functional. This direct attach cable will initialize and perform identically to Arista Networks and IBM's individual cables and is built to meet or exceed Arista Networks and IBM's specifications. This product complies with MSA (Multi-Source Agreement) standards and is TAA (Trade Acts Agreement) compliant. We stand behind the quality of our products and proudly offer a limited lifetime warranty.