The Cisco NSE-150 is the forwarding engine or route processor for the Cisco 7304; it uses Parallel Express Forwarding (PXF) technology to deliver hardware-accelerated network services with up to 3.5-Mpps forwarding rate; it also has an 800-MHz microprocessor CPU to support a rich feature set in Cisco IOS Software with high performance and scalability. With the four onboard Gigabit Ethernet ports, it also increases the overall port density of the platform and maximizes the value of customers' investments.