Server & WorkstationChina CISCO Catalyst 4-Port Gigabit LAN Expansion switch module for 3850-24/3850-48 Series C3850-NM-4-1G, Find details about China C3850-NM-4-1G, CISCO C3850 module from CISCO Catalyst 4-Port Gigabit LAN Expansion switch module for 3850-24/3850-48 Series C3850-NM-4-1G