40G QSFP+ AOC stands for 40 Gigabit Quad Small Form-factor Pluggable Plus Active Optical Cable. It is an integrated high-speed cable assembly with fixed QSFP+ connectors on both ends, incorporating embedded optical transceivers and multimode fiber optics. Designed for short-reach data center applications, it provides 40Gbps full-duplex bandwidth through four parallel 10Gbps channels. This hot-pluggable solution enables cost-effective connectivity for top-of-rack switching, server aggregation, and high-performance computing.