100G QSFP28 AOC stands for 100 Gigabit Quad Small Form-factor Pluggable 28 Active Optical Cable. It is an integrated high-speed direct-attach cable solution with fixed QSFP28 connectors on both ends, containing embedded optical transceivers and ribbon fiber cables. Designed for short-reach data center applications, it provides 100Gbps full-duplex bandwidth using four parallel 25Gbps lanes. They are widely used in top-of-rack switching, server interconnects, and high-performance computing clusters.