for anyone else who might wonder, the tech specs are at the bottom of the store pages:

https://www.commodore.net/product-page/commodore-64-ultimate...

CPU emulation is FPGA-based, seems like it can accept original SID chips if you have them (?) or use an FPGA version, and the keyboard uses Gateron mechanical switches. Seems pretty good for the price, if tariffs don’t fuck you over. I wonder if they’re overestimating the number they’ll sell, though.