Good advice you've received so far. One thing to be sure of with whatever audio interface you choose is to be sure you have line in inputs available to receive the audio from your keyboard. Some Lower priced, fewer input devices from most manufacturers preamps are not line level but Mic/instrument level. Your keyboard will operate and interact with the audio device best with line levels.

The way you use your system and the way you want to connect everything together, I think your best choice is to purchase an analog mixer with USB interface. They are very reasonable in price, comparable to audio interfaces in quality of receiving and transferring data between the mixer and your computer. They have more inputs, outputs and routing options than any comparable priced audio interface will offer. You will get designated line level inputs and channels for connection your keyboard and other devices. It will have the capability to connect other devices to your system like an iPad, iPhone, ZOOM recorder, etc. without any issues. You will have the capability to record into your PC while at the same time record directly into your Zoom recorder or iPhone. With the right mixer, you can send different mixes to each recording device.

You have many options of different brands, varying counts of inputs and outputs, built in digital effects and USB connectivity.

BIAB 2025:RB 2025, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.