Restrictions for Internal Power Supplies
Power Supply configuration is not supported on C9500-32C, C9500-32QC, C9500-48Y4C, and C9500-24Y4C models of the Cisco Catalyst 9500 Series Switches. Use the show environment status command to check the power supply status.
For C9500-32C, the power supply with serial number starting with POG has two fans and the power supply with serial number starting with QCS has a single fan. See Configuration Examples for Internal Power Supplies.