IT managers struggling with explosive data growth and the rapid adoption of server virtualization technology are looking for ways to be more productive and get more out of key applications with the same -- or more likely -- less budget. The CLARiiON CX4, the fourth generation of EMC's highly modular CX storage platform, includes a number of new technologies that are designed to improve the total cost of ownership while enhancing the ease of use, performance, and protection of consolidated and virtualized environments. This ESG Lab report documents hands-on testing of the CX4 with a focus on major usability and manageability upgrades, UltraFlex modular I/O technology, Enterprise Flash Drive support, Virtual Provisioning, and integrated RecoverPoint replication working in concert with VMware Site Recovery Manager. The CX4 family's ability to optimize virtual server environments using the Navisphere Quality of Service Manager (NQM) and VMware Distributed Resource Scheduler (DRS) is also examined. To read the report, go to EMC CLARiiON CX4 - Modular storage with real TCO impact.