SimpliVity is a startup that was founded back in 2009, and existed stealth mode until VMworld‘s annual conference, held this past August. It offers something called the OmniCube, a cloud appliance those bundles up modern hardware and software into easily-managed units that can be stacked and administrated economically.

Today, SimpliVity announced that it has raised a massive $25 in Series B funding led by Kleiner Perkins Caufield & Byers.  Existing investors Accel Partners and Charles River Ventures didn’t miss out on the opportunity to increase their stake in the promising firm, and also participated in the round.

The funding, which comes just four weeks after the OmniCube has been unveiled, raises the total capital the company raised to date to $43 million. The startup will use the money to gear up for a “rapid growth year in 2013.”  Its product is due to launch in the fourth quarter of 2012.

“SimpliVity is at the forefront of the convergence trend that is transforming enterprise IT,” said Matt Murphy, partner at KPCB. “Its flagship offering, OmniCube, leapfrogs competitive products in breadth of functionality and introduces a highly efficient, and novel data architecture. The result is an ultra-functional yet low cost data center in a box solution that addresses the most pressing issues in the data center today: cost and complexity.”

OmniCube is touted as a hyper-appliance: their U2 box can offer almost a dozen different capabilities including backup and dedupe, cloud integration, WAN optimization and more. Multiple OmniCubes can be deployed to create OmniStacks, which offer the same level of simplicity as a single appliance on a bigger scale.

SimpliVity is appealing to both enterprises and SMBs with its offering. While the market hasn’t had the chance to get its hands on the product yet, a  number of big name investors are very confident in OmniCube’s potential.