Cisco Catalyst 2960XR-24PS-I - Switch - L3 - managed - 24 x 10/100/1000 (PoE+) + 4 x Gigabit SFP - desktop, rack-mountable - PoE+. Cisco FlexStack-Plus stacking for Cisco Catalyst 2960-XR series switch provides a true stacking solution, with all switches in a FlexStack-Plus stack acting as a single switching unit. FlexStack-Plus provides a unified data plane and single configuration for a group of stacked Cisco Catalyst 2960-XR switch. FlexStack-Plus lower the total cost of ownership with built-in 1: N redundancy, high availability, and preprovisioning, not available in standalone switches. High-availability features such as EtherChannel and FlexLinks will work across stack members, increasing uptime and network connectivity. FlexStack-Plus is an improvement over FlexStack because it doubles the speed of the stack bandwidth and allows for more members to join the stack. The FlexStack-Plus bandwidth for a single stack member is 40 Gbps compared to 20 Gbps with FlexStack. With multiple stack members, the FlexStack-Plus bandwidth is 80 Gbps. With FlexStack-Plus technology, eight 2960-XR members can be joined into a single stack.