What are the differences between the iPrism appliance models?
The primary differences are in performance and hardware redundancy. Models 3000/3100/11000 can handle greater amounts of traffic due to greater CPU, network interface, memory, and disk capacities. These models are generally 3X the ability of the Model 1200 (or more). They also provide disk, fan, and power supply hot-swap features. See Appliance Specifications.