 The Multiprise 3000 supports ESCON and a limited number of network adapters for external I/O.There are three models available (7060-H30, -H50, -H70), that differ in the capacity and throughput and, thus, software license costs.Both H30/H50 have one main processor with 1GB/2GB of memory while the H70 model has two main processors with 4GB of memory.