https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/hw/aci_93128tx_hig/guide/b_n93128_aci-mode_hardware_install_guide/m_additional_kits.html
Cisco Nexus 93128TX ACI-Mode Switch Hardware Installation Guide - Additional Kits [Cisco Nexus 9000...
hardware installation guidecisco nexus