Manufacturer Part #: C9300X-NM-4C
Cisco Catalyst 9300X Network Module for uplink ports - 4 x 40 GE/100 GE slots with a QSFP+ connector in each 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.