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The 3Com Switch 7757 chassis bundle provides the foundation for delivering performance, security and Quality of Service in a modular seven slot chassis optimized for workgroup edge deployments. This bundle includes a 7-slot chassis with pre-installed dual power supplies and a fan assembly; switch fabric must be ordered separately. The chassis supports Power over Ethernet (PoE) with the addition of the 3Com Switch 775X External PoE Power Rack and a 3Com Switch 7700 48-port 10/100/1000BASE-T PoE module or Switch 7700 48-port 10/100BASE-TX PoE module. Available modules provide Ethernet/Fast Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet with copper or fiber connectivity.