The Cisco A9K-4HG-FLEX-TR is a 5th Generation router line card manufactured by Cisco. It features a modular form factor and supports up to 400GE transmission speeds through flexible interface configurations.

Compatible with the ASR 9000 series routers, this module supports port combinations for both high-density Ethernet aggregation and transport applications. The card includes support for power redundancy based on chassis configuration and mounts directly into supported slots within compatible systems using standard mounting practices.

Cisco A9K-4HG-FLEX-TR: ASR 9000 400GE Combo Packet Transport Line Card - 5th Generation.