This TP-Link foldable USB 3.0 to Gigabit Ethernet network adapter is down to $7.99 on Amazon. That price is its lowest ever and even $2 better than the last deal we shared. This adapter fluctuates a lot in price but regularly sells for around $15 and often much higher.

If you've got a laptop with limited ports, but you're sick of the instability of wireless internet, then you want this adapter. I imagine it would be particularly helpful in places where your only reliable Wi-Fi are public networks, like at hotels or college. This is a plug-and-play device that's compatible with Windows, Mac, Linux, and even Chrome OS. It's backwards compatible with USB 2.0 and lower ports. Plus, it can fold down, making it extremely portable. TP-Link covers it with a two-year warranty and a lifetime of technical support. Users give it 4.1 stars based on 156 reviews.

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