Take our quiz: What’s the difference between RS-232, RS-485 and USB?

Does each phrase best describe Recommended Standard 232 (RS-232), Recommended Standard 485 (RS-485) or universal serial bus (USB)?
Sept. 4, 2026
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Opened car USB port in the car for connecting device. Power output of usb charger close up view.

Can you tell the difference between RS-232, RS-485 and USB?

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