C3850-NM-4-1G Cisco Catalyst 3850 4 x 1GE Network Module

CISCO NM-1A-T3/E3 1-Port T3/E3 ATM network Module

Cisco Systems NM-HD-2V Two-slot IP Communications Voice/Fax Network Module

CISCO NM-1A-OC3MM One port ATM OC-3 Multimode

CISCO NM-16A 16 port Asynchronous Module

CISCO NM-4B-U 4-Port ISDN-BRI with NT-1 Network Module

Cisco EVM-HD-8FXS/DID High-Density 8-Port FXS/DID Voice Network Module

Cisco PA-A3-E3 1-Port ATM Enhanced E3-Port Adapter