I once saw an advertisement saying that you put a kind of larger USB stick in your laptop and that makes the laptop faster, because a processing unit CPU or GPU is built into the USB, which is supposed to provide more power etc.
Is there anything to it? Is there such a thing? I took a look and found "Google Coral", but I don't know exactly what it is or whether it is.
There's no such thing.
At least not what Really brings.
Possibly via USB C but that is a huge device
No, there's a maximum that you can put a lightweight linux on but no pig wants that
No, that's all just fake if you want to make your laptop faster then get an SSD hardware
look what the difference is between HHD and SSD there are many videos about it in YOUTUBE
What you mean is probably "https://support.microsoft.com/de-de/help/2442620/usb-and-sd-storage-media-readyboost-with-a-sd-card-or-a-flash-drive". It's been around since Vista, but has never really worked (at least for me in attempts). You can't just put a CPU or GPU on a USB stick and plug it in, that's nonsense.