ProLiant ML release are focused on small businesses with the expandable towers. They offer remote and branch offices in need of Louis networking, file and print and shared Internet access solutions. This provides some maximum internal storage and I/O flexibility.
HP ProLiant ML 100 servers. These provide one and two processor solutions. There suited for SMB environments in single tier architectures.
HP ProLiant ML 300 servers. One and two processor servers with enterprise-level management. They offer industry-leading performance and scalability.