This is an IBM 45W3039 compatible 10GBase-CU SFP+ to SFP+ direct attach cable that operates over active 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. Our 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 our twinax and AOC cables are Trade Agreements Act (TAA) compliant.