Manufacturer Part #: C9300X-NM-8M
Cisco Catalyst 9300X Network Module for uplink ports - 8 x Multigigabit Ethernet (mGig) slot - Plug-in module supported only on C9300X-24Y
Cisco Catalyst 9300 Series switches support optional network modules for uplink ports. These field-replaceable network modules with 25G and 40G speeds in the Cisco Catalyst 9300 Series enable greater architectural flexibility and infrastructure investment protection by allowing a nondisruptive migration from 10G to 25G and beyond. The default switch configuration does not include the network module.