a small device that can let you set up an Internet access
AirPort is still Apple's brand name it uses for its Wi-Fi networking products using the regular 802.11b, g, n and ac standards. Apple started using the name AirPort way back in 1999. If you hear the word AirPort mentioned in conjunction with Apple it's essentially referring to Wi-Fi products and protocols.
It works with all popular flavors of Wi-Fi, including 802.11b, 802.11a, 802.11g and 802.11n. It's also compatible with both Mac and Windows operating systems. Security-wise, you can set the Express to use WPA (Wi-Fi Protected Access) or WPA2, 40-bit or 128-bit Wireless Security (WEP) and MAC address filtering.
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