AccelOps uses the Cisco UCS XML API to discover Cisco UCS devices and collect hardware statistics such as the status of processors, memory, chassis, power supplies, fans, and other components. The document provides instructions on defining Cisco UCS credentials in AccelOps, testing the connectivity, discovering devices, and monitoring performance data. It also provides examples of event messages generated from Cisco UCS for different hardware components including power supply status, processor status, chassis status, memory status, and fan status.