C9500-48X-E is Catalyst 9500 48-port 10G Bundle, Network Essentials. The Cisco Catalyst 9500 Series Switches are the next generation of enterprise-class core and aggregation layer switches, supporting full programmability and serviceability. Based on an x86 CPU, the Catalyst 9500 Series is Cisco’s lead purpose-built fixed core and aggregation enterprise switching platform, built for security, IoT, and cloud. The Catalyst 9500 Series is the industry’s first purpose-built 40Gigabit Ethernet line of switches targeted for the enterprise campus.