This says the interface is USB. Is that usb A or usb C?

not sure if this helps you but going to the computer is a usb-a and going into the keyboard is a usb-c , I bought 2 of this product and both keyboard have the cables seperate from keyboard which

Are the switches red or brown? The product title says red, the description says brown.

The product uses mechanical Brown switches, as mentioned in the product description.

Questions & Answers: Redragon K556 RGB LED Backlit Wired Mechanical Gaming Keyboard, Aluminum Base, 104 Standard Keys Red Switch

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Redragon K556 RGB LED Backlit Wired Mechanical Gaming Keyboard, Aluminum Base, 104 Standard Keys Red Switch

Mechanical Brown Switches: Offering the satisfying tactile typing experience, also being ever so slightly quieter, fitting for office or gaming use. 8 spare switches got as a gift.
18 Backlit Modes: Press FN + INS-PgDn to enter Pro-gamer mode. RGB LED adjustable lighting with 6-themed backlights -18 lighting models. You can also adjust their brightness with FN+ and Besides, there is a 9-color single backlit mode for this keyboard.
N-key Rollover, Ergonomic Durable Design: K556 is made of full metal material, with a matte-finish texture, solid enough to protect it from scratch. It allows multi-keys to work simultaneously with high speed.
Self-design & Removable Keycaps: The Redragon K556 features a custom designed keycap that has been made shorter to reduce the time it takes for your actions to register.
Wide Compatibility: Windows10, Windows 8, Windows 7, Mac OS X, Windows XP, Windows VISTA, etc.

$53^.99 –