MySQL NDB cluster maximum data size

According to the limitations outlined at http://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-limitations.html , there can only be 48 data nodes. Does that mean, with number of replicas 2, I can actually have only 24 nodes to store data? If the data memory is, say 4GB, then, does it mean I can only store 24*4=~100GB? If so, how can I set up a cluster to store TBs of data?