This Arista Networks® CAB-Q-4S-100G-3-5M to Mellanox® SFP-25GB-PDAC3-5M- MX dual OEM compatible 100GBase-CU QSFP28 to 4xSFP28 passive direct attach cable has a maximum reach of 3.5m (11.5ft). It is 100% Arista Networks® to Mellanox® 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 Mellanox®'s individual cables and is built to meet or exceed Arista Networks® and Mellanox®'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.