The New Extreme 10GBE SFP Expansion VIM5-4X 5000 Series 5520 Switches 5520-VIM Regit is a high-performance switch module designed for expanding network ports with SFP capabilities. Specifically designed for the Extreme 5520 series switches, this module provides additional 10GBE SFP ports for enhanced connectivity and network flexibility. Ideal for businesses looking to boost their network capabilities with high-speed and reliable connections, this expansion switch module is a valuable addition to enterprise networking setups.