A:AnswerI ended up purchasing this keyboard, and although it will not store rgb profiles in the onboard memory, you can press fn + ctrl + 2 to cycle through solid colors for your lighting profile.
A:AnswerRazer recently released the BlackWidow V3 Pro, DeathAdder V2 Pro, and the BlackShark V2 Pro together. They're all new wireless "pro" editions of otherwise excellent former products.
A:AnswerNo. As its main device requirement is a PC with a free USB Type-A port or Bluetooth 4.0 connectivity, attempting to connect it to PS4 might only be for basic functionality.