QSFP112 passive copper cable assembly feature eight differential copper pairs, providing four data transmission channels at speeds up to 100Gbps(PAM4) per channel, and meets 400G Ethernet and InfiniBand Next Data Rate(NDR) requirements. are designed to exceed industry standard performance offering a cost-effective, low latency, lowest-power option for high-speed data center interconnects. 400G PAM4 OSFP DAC. The 400G QSFP112 Active Electrical Cable is copper cable with retimer chip at both ends for complete signal integrity and is designed for use in 400G Ethernet. Each QSFP-DD port includes an EEPROM that provides product information that can be read by the host system. Available in 26AWG and 30AWG wire gauges, this 400G copper.