Keyboard, just buy a Dell 8 1 15 in 58 yuan. As long as it's not a mechanical keyboard, the general keyboard is like this, and the mechanical 800 goes up by one, which is unprofessional and useless. . .
Mouse, look what you bought. IO 1. 1 is only 200. I'll use XAI 600 or so, depending on your own preferences.
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I don't play CF, I play CS, and I use Siberian 1 generation, 8 1 15 keyboard and XAI mouse (IO 1. 1 IE3. Viper, I have it, too. It's still very cool. . It's comfortable to play small games.
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In addition, if you are not a professional, there is no need to buy something too expensive. Really, you should first look at how much money you have, set an upper limit, and then choose devices in the order of mouse first, earphone last and keyboard last. I am sure it is. . . . .