U.S. Auto Parts Network, Inc. (U.S. Auto Parts) offers online sources for automotive aftermarket parts and repairs information. The Company principally sells its products, identified as stock keeping units (SKUs), to individual consumers through its network of Websites and online marketplaces. The Company's Websites provide customers with a selection of approximately two million SKUs with product descriptions and photographs. The Company has developed a product database that maps its SKUs to product applications based on vehicle makes, models and years. It offers a selection of aftermarket auto parts. U.S. Auto Parts classifies its products into three categories: body parts, engine parts, and performance parts and accessories. The Company sources its products from foreign manufacturers and importers located in Taiwan and China, and from the United States manufacturers and distributors.