Mellanox MCP1700-B001E Passive Copper Cable Ethernet 40GbE QSFP 1m Black Pulltab 56Gb/s and 40GbE QSFP+ Direct Attach Copper Cables Mellanox QSFP+ direct attach copper (DAC) cables provide robust connections for leading edge 56Gb/s InfiniBand or 40GbE Ethernet systems. The cables consist of four lanes each operating at data rates of up to 14.0625Gb/s. Passive copper cables require no additional power to ensure quality connectivity. The cables are compliant with SFF-8685 specifications and provide connectivity between devices using QSFP+ ports. Each QSFP+ port comprises an EEPROM providing product information, which can be read by the host system. This integrated cable solution provides reliable transport for aggregate data rates of up to 56Gb/s Virtual Protocol Interconnect (VPI). Optimizing systems to operate with MellanoxâÃÂÃÂÃÂÃÂs 56Gb/s passive copper cables significantly reduces power consumption and EMI emission, eliminating the use of enterprise data center (EDC) hosts. MellanoxâÃÂÃÂÃÂÃÂs 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. Rigorous cable production testing ensures best out-of-the-box installation experience, performance and durability.