QSFP+ direct-attach Twinax breakout cable adds 40 GbE connections over copper QSFP+ Copper DAC length is 1 m (3.3 ft) QSFP+ direct-attach copper cable complies with MSA industry standards Passive DAC copper cable has low power consumption of less than 0.1 W Hot-swappable with fiber optic QSFP+ breakout cables and other copper DACs Uses cost-effective copper cabling alternative to fiber optics