For those with a Mac Air or MacBook Pro (including Retina), the only thing we don't have is a built-in Ethernet port. . Laptops are too thin. Call it a slower, cheaper solution to adding an Ethernet jack. For those who use Ethernet regularly, upgrade to a Thunderbolt/Ethernet adapter. For those who rarely need an Ethernet adapter, this USB 2.0 adapter will meet your needs, but agree that it doesn't have the same data transfer speeds as a USB 3.0 or Thunderbolt adapter. The quality of this adapter is excellent and I love the two extra USB sockets they added just in case. We've now joined the Wi-Fi world, so this isn't an article you're likely to use very often. Situations where you need Ethernet include firmware updates for your modem/router. Almost all modems require changes to be made over Ethernet.
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