We tested the Keychron K4 with white backlighting, plastic frame, and Optical Brown switches. However, Keychron offers many configuration options. You can choose to have white backlighting or full RGB, and the RGB variant has an option with a full aluminum frame. In addition, there are seven different types of switches to choose from. The LK optical switches are available in Brown, Blue, and Red, and the non-optical Gateron switches come in Brown, Blue, Red, and Yellow.
Note that this keyboard isn’t available through retailers such as Best Buy or B&H. It’s available on Amazon and Newegg; however, Keychron’s website offers the most configuration options.
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