The Cisco 2-Port Gigabit Ethernet backcard for the Cisco MGX 8800/8900 Series Route Processor Module (RPM) XF is designed for use with the CiscoMGX 8800 and MGX 8900 Series wide-area edge switches. This backcard is for use with the Cisco MGX 8800/8900 Series MGX-RPM-XF-512 to provide up to OC-24 of bandwidth for IP services in the new world of data networking.