This is a Brocade 40G-QSFP-4SFP-C-0501 compatible 40GBase-CU QSFP+ to 4xSFP+ direct attach cable that operates over passive copper with a maximum reach of 5.0m (16.4ft). It has been programmed, uniquely serialized, and data-traffic and application tested to ensure it is 100% compliant and functional. The direct attach cables are built to comply with MSA (Multi-Source Agreement) standards. The actual part shipped may have a different part number, but will be functionally identical and 100% compatible. All of the twinax and AOC cables are Trade Agreements Act (TAA) compliant.