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This datasheet details the 400G QSFP-DD to QSFP-DD Passive Direct Attach Copper (DAC) Cable. Engineered specifically for intelligent computing (AI/ML) and high-performance computing (HPC) data centers, it enables low-latency 400Gb bidirectional transmission, supporting 8 channels of 50G PAM4 signaling. This product strictly adheres to the QSFP-DD standard form factor, boasts excellent mechanical and bend performance, and complies with the Multi-Source Agreement (MSA) technical specifications.
We offer standard lengths including 1.0M, 1.5M, 2.0M, 2.5M, and 3.0M. Passive DAC cables are ideally suited for short-reach, high-speed interconnects within adjacent racks.
Yes, the cable fully supports hot-plug functionality, allowing installation or replacement without powering down host systems or interrupting overall network operation.
The cable is compliant with IEEE 802.3cd, QSFP-DD MSA HW Rev 7.1, and CMIS 5.1 specifications, transmitting 8 channels of 50G/56G PAM4 modulation to achieve a total bidirectional 400Gbps bandwidth.
As a passive direct attach copper cable, it contains no active signal boosting components, requiring negligible power only for the onboard EEPROM/I2C identification circuitry operating via a standard 3.3V supply.
It is designed for standard QSFP-DD/OSFP enterprise network devices including top-of-rack switches, routers, host bus adapters (HBAs), enterprise storage arrays, and high-performance computing (HPC) servers.
Yes, all cable assemblies are fully RoHS compliant, lead-free, and manufactured in accordance with strict international environmental and quality management guidelines.
