
The A99-12X100GE is a high-density line card designed for the Cisco ASR 9900 Series routers. 1 It provides 12 ports of 100 Gigabit Ethernet connectivity, enabling high-bandwidth data transmission. 2 This card is crucial for service providers and large enterprises needing to handle massive amounts of data traffic. 3 It supports flexible configurations and is optimized for modern applications like cloud services and video streaming. 3