There's an exception if you can convince the FTC that the product will only work correctly with branded parts. Take a look at 15 USC 2302(c): https://www.law.co

There's an exception if you can convince the FTC that the product will only work correctly with branded parts. Take a look at 15 USC 2302(c): https://www.law.cornell.edu/uscode/text/15/2302 https://www.law.cornell.edu/uscode/text/15/2302