Summit X650 can support an additional 8-ports of 10 Gigabit Ethernet by installing the optional VIM-10G8X module which offers 8-port 10 Gigabit Ethernet SFP+ ports as well as SummitStack 40G ports. With this option, you can maximize the number of interfaces for servers up to 24 ports while using the dedicated 8-port 10 Gigabit Ethernet for uplink connectivity. The optional VIM1-10G8X provides ideal bandwidth to the backbone by offering 80 Gbps aggregated bandwidth. With this 8-port 10 Gigabit Ethernet SFP+ module, Summit X650 can support up to 32 ports of 10 Gigabit Ethernet in a 1RU form factor. This option provides 3:1 oversubscription from front ports (total 24 ports) to uplink ports (total 8 ports) and maximizes server port density. Both in star and ring topologies, this architecture helps build a 10 Gigabit Ethernet data center or HPCC application.