This Arista Networks CAB-D-D-400G-2M to Mellanox MCP7H60-W002R26 compatible 400GBase-CU QSFPDD to 2xQSFP56 passive TAA (Trade Acts Agreement) compliant direct attach cable has a maximum reach of 2.0m (6.6ft). It is 100% Arista Networks to Mellanox 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 Arista Networks and Mellanox's individual cables and is built to meet or exceed Arista Networks and Mellanox'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.