QSFP28-4SFP28-PC3M 100Gbps QSFP28 to 4xSFP28 Direct Attach Cables1 Description QSFP28 passive copper cable assembly feature eight differential copper pairs,providing four data transmission channels at speeds up to 28Gbps per channel,and meets 100G Ethernet,25G Ethernet and Infini Band Enhanced Data Rate(EDR) requirements. Available in a broad rang of wire gages from 26AWG through 30AWG this 100G copper cable assembly features low insertion loss and low cross talk. 2 Product Features Compatible with IEEE 802.