HANSUN Direct Attach Cable (DAC) is a high-speed, cost-effective alternative to an optical transceiver or Active Optical Cable (AOC) in data centre applications when the transmission distance is within 7m. Each DAC product includes an EEPROM providing product information, which can be read by the host system. It has premium s parameter and impedance parameter control with automatic production, so that the DAC solution provides an energy-efficient connection for short-distance interconnection, and achieves higher port bandwidth, density and configurability with low cost and lower power consumption. Rigorous cable production testing ensures the best out-of-the-box installation experience, product performance and durability.