Cisco Catalyst WS-X4712-SFP+E= 4500 E-Series 12-Port 10GbE (SFP+)
Cisco Line Card - 12 x SFP+ 12 x Expansion Slots SFP+
Cisco Line Card E-Series - Switch - 12 x 10 Gigabit SFP+ - plug-in module - for Catalyst 4503-E, 4503-E Data Bundle, 4503-E PoE Bundle, 4506-E, 4506-E PoE GE Bundle
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