Cheaply add 5GHz wireless "n" to Dell E6530 running linux (should work with windows too)
Added 5GHz wifi ("n" only - 300Mbps max) to my Dell Latitude E6530 laptop. Easy to fit and works perfectly with linux Mint 20 without any settings changes. I can now can connect to both 2.4Ghz & 5GHz access points using 802.11n.