QSFP28 active optical cables support data rates up to 100Gbps and are a cost-effective and energy-efficient alternative to traditional optical transceivers and passive copper cables. 5 m to 100 m, beyond the range of Direct Attach Copper Cables (DAC). These high performance and low power consumption AOCs. This guide provides the definitive roadmap for selecting, deploying, and troubleshooting QSFP28 transceivers while bypassing the painful trial-and-error phase. Below, you will find comprehensive module comparisons, realistic market pricing, and precise vendor compatibility protocols to ensure a. The term QSFP28 stands for Quad Small Form-factor Pluggable 28, a standard that enables 100Gbps data transmission over optical fiber.