Split and Curved Keyboard Types

Talk about the types of the common different split or curved keyboards on the market and if it is a feature that can help you.
I am an ergonomic consultant with Ergobility located in the Bay Area of California talking about the design of products.
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Products recommended in the video from least advanced to most:
Curved:
Logitech K350
Microsoft Sculpt Comfort
Fixed Split:
Microsoft Sculpt Ergonomic
Microsoft Ergonomic
Kinesis Advantage 2
Adjustable Split:
Goldtouch V2
Goldtouch Go!
Kinesis Freestyle 2

[@ricardocalixto4472]

👌👌👌👏👏👏👏 thanks a lot, your videos helped me a lot!!!!!!!

[@GregorGorjanc]

Check Moonlander keyboard from ZSA

[@ergonmx5658]

Category of adjustable split similar to what Kinesis does.