Nintendo may be preparing to upgrade the original Switch console with a better processor and more storage.

The company is seeking permission from the FCC to change the "SoC type," the "NAND Memory," and CPU board on the original Switch model, according to a regulatory filing made earlier this month.

The letter, which was first reported by The Verge, means Nintendo is looking to swap out the Switch's Nvidia Tegra X1 processor for something else. Unfortunately, the document doesn't say what. But the company has long been rumored to be brewing an upgrade to the product, which was originally launched back in 2017.

Refreshing the processor could mean lots of things. The silicon might be more powerful, allowing the new Switch to play games at a 4K resolution over a TV. An upgraded chip could also enable a more power-efficient device that runs on less battery. Another possibility is that the new components ultimately offer the same performance, but come at cheaper costs for Nintendo.

Whatever the case is, the company is remaining mum on an upcoming refresh for the original Switch. In an interview with CNET, Nintendo of America president Doug Bowser said the current product model isn't getting upgrade this holiday season.

In the meantime, the company has created a cheaper version of the console, called the Switch Lite, which will retail for $199 when it arrives on Sept. 20. The new product is a handheld-only device and nixes the TV connectivity. On the plus side, the Switch Lite weighs about 30 percent less and features slightly better battery life over the original Switch.