Both routers and modems have important functions in connecting your devices to a home network. Here is a full comparison of router vs modem.
Modem vs router: What's the difference?
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Modem vs Router – What is the Difference? Do I Need Both?
Modem vs. Router: The Differences and Why You Need Both
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What is a Cable Modem?
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Modem vs. Router: What's the Difference?
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