These direct attach copper (DAC) cables are high speed, cost-effective alternatives to fiber optics in 100Gb/s Ethernet applications. This QSFP28 passive copper cable contains four high-speed copper pairs, each operating at data rates of up to 25GbE. Each QSFP28 connector includes an EEPROM providing product information which can be read by the host system. This cable’s unique quality, passive, copper cable solutions provide power-efficient connectivity for short distance interconnects. They enable higher port bandwidth, density and configurability at a low cost and reduced power requirement in the data centers.