NAND flash memory is one of the most common forms of storage for a variety of digital devices from iPods and MP3 players to digital cameras and more. As such an integral part of many consumer electronics, the price of NAND flash directly affects what consumers pay for electronic devices.

Reuters reports Toshiba has been subpoenaed by the U.S. Department of Justice about its flash memory business in America. SanDisk, Toshiba’s U.S. Partner, announced Friday that it and CEO Eli Harari had also received grand jury subpoenas. The subpoenas reportedly indicate a governmental probe into price-fixing in the NAND flash memory industry in America.

Toshiba’s U.S. semiconductor sales unit also received the subpoena, according to Toshiba spokesman Keisuke Ohmori in a statement made Saturday. SanDisk says the subpoenas filed against it and its CEO followed a lawsuit last month alleging price-fixing of flash memory. A bit over a year ago, Rambus faced a similar plight when the U.S. Federal Trade Commission unanimously voted that Rambus unlawfully monopolized the market for DRAM chips.

In that case, it was ruled than Rambus hid patents they held concerning technologies that were going into JEDEC standards. Rambus then waited until companies started using the JEDEC standards to file patent infringement lawsuits.