Oct 7 (Reuters) - Nvidia Corp on Friday said it does not expect new U.S. export control rules against sending chips to Chinese supercomputing systems to have a material affect on its business.

Nvidia said the it had already been made subject to rules, which it disclosed to investors last month, saying that they could impact $400 million of its sales in China for its current fiscal quarter.

"We don’t expect the new controls, including restrictions on sales for highly dense systems, to have a material impact on our business," the company said in a statement. (Reporting by Stephen Nellis in San Francisco)