Four Gigabit Ethernet Port Network Module, spare
Cisco C3KX-NM-1G=, Internal, Wired, Ethernet, 1000 Mbit/s, Black, Silver, White
Cisco C3KX-NM-1G=. Internal. Connectivity technology: Wired, Interface: Ethernet. Maximum data transfer rate: 1000 Mbit/s. Product colour: Black, Silver, White