Cisco VWIC-2MFT-T1 2-Port Multiflex Network Interface Module Router Trunk Card 800-04477-04 B0.Cisco Part Number: 800-04477-04 B0Cisco Model Number: VWIC-2MFT-T1Compatible Part Numbers: 73-3663-04 B0Interfaces/Ports:CTRLR T1/1CTRLR T1/0