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I am trying to ID the wireless card on my MBP. How do I find this information? I've trying looking on EveryMac, but to no avail. How do I find this info?

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 -> About This Mac -> More Info... -> System Report...

Under the Network Heading, click Wi-Fi, and find Interfaces: on the right side of the window. You will find your card type, firmware version, MAC address, etc.

The route for older MacBook Pro running OSX 10.5, 10.6...

 -> About This Mac -> More Info... -> Under "Network" choose "Airport"

Scroll down to: "Interfaces" "en1" "Card Type"

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    Ah. So it's something like this: AirPort Extreme (0x14E4, 0xD6)? – daviesgeek Sep 15 '12 at 18:17
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    Yes, that's the card name itself. Below that, you'll see Firmware Verison which is also important to note, since that has to do with the card & performance. – sofly Sep 16 '12 at 4:21
  • Yep, what @SoFLy said – Ethan Lee Sep 16 '12 at 22:34
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    What if my Wi-Fi section is blank? I'm running 10.10.1 imgur.com/1v2Yvv5 – Keyslinger Sep 24 '15 at 2:48
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    @Keyslinger it sometimes takes a few seconds to load (don't ask me why) – intcreator Aug 24 '17 at 17:03
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Using the command line:

ioreg -r -n ARPT

The line starting with IOName will have a value of pciVVVV,DDDD Where VVVV is the vendor ID and DDDD the device ID.

For example:

"IOName" = "pci14e4,43ba"

If you google those you'll find the corresponding vendor and model. The one from my example is Broadcom BCM43602.

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ioreg -r -n ARPT | grep IOName

This way you don't have to search for the right line :)

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