Cisco Network Module Adapter for SM Slot - Network device slot adapter - for Cisco 2901, 2911, 2921, 2951, 3925, 3925E, 3945, 3945E Application/Usage: Data Networking Product Type: Network Module Product Type: Network Module Compatibility: Cisco 2900 Series Integrated Services Routers Cisco 3900 Series Integrated Services Routers Manufacturer Part Number: SM-NM-ADPTR Limited Warranty: 90 Day Manufacturer: Cisco Systems, Inc Product Model: SM-NM-ADPTR Product Name: SM-NM-ADPTR Network Module Brand Name: Cisco Brand Name: Cisco