A9K-MOD80-GE is ASR 9000 Mod80 Modular Line Card, Packet Transport Optimized, requires modular port adapters. Cisco ASR 9000 Series modular line cards provide customers with a flexible solution supporting multiple combinations of Ethernet ports, all in a single slot of the Cisco ASR 9000 Series Aggregation Services Routers. Modular line cards support a wide range of interfaces and densities.