NextIO, the premier provider of next-generation I/O solutions, today announced that the company has received a $15 million round of Series D funding. NextIO is the industry leader in providing intelligent, rack-optimized I/O virtualization (IOV) solutions based on high-performance PCI Express (PCIe) switching technology.

NextIO received support not only from existing VCs and strategic investors, but participation from new strategic investment sources as well. The new funding will be used to expand NextIO’s sales, marketing and support and will allow the company to accelerate the delivery of its second-generation of Express Connect™ products.

“NextIO is without question the leader in I/O virtualization,” said K.C. Murphy, CEO, NextIO. “With our second-generation products, we will have the ability to completely virtualize all PCIe I/O, allowing any blade or rack server to access any PCIe I/O device as part of a virtual pool of resources. NextIO appreciates the strong support and enthusiastic backing of our investors, and we are moving aggressively to take advantage of the huge market opportunity in data center solutions and rack-level I/O virtualization.”

Through I/O virtualization, NextIO products deliver an unprecedented combination of low cost, lower power consumption, greater ease of use, and greatly reduced maintenance requirements. For example, server rollouts that previously required days or weeks can be accomplished in less than 30 minutes, and routine server maintenance time is reduced from hours to minutes.

NextIO’s second-generation products build on the success of the company’s existing Express Connect products, which are at revenue and are currently being deployed in the U.S. and Europe. NextIO solutions are currently in use in a number of different markets for applications such as simulation, adding graphic processors to commodity computing environments, expanding I/O, speeding up existing I/O, and delivering new data center technologies.

The company will showcase a preview of its new product line including IOV and GPU solutions this month at the SIFMA (Securities Industries and Financial Markets Association) Technology Exhibit and Conference in New York, June 23-25.