HP® J8440B compatible 10GBase-CX X2 transceiver (Copper, 100m, CX4). An HP® X2 transceiver that operates over copper, with a maximum reach of 100m connected via a CX4 connector. This HP® compatible X2 transceiver has been programmed, uniquely serialized, and data-traffic and application tested to ensure it is 100% compliant and functional. Our X2 transceiver will initialize and perform identically to HP's transceiver and is built to meet or exceed HP's specifications, and 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. Trade Agreements Act (TAA) versions of this part are available.