13

I am unsure if my wifi card supports 802.11ac. How can I find out this information?

20

If you run iw list, look for the lines specifying VHT.

    VHT Capabilities (0x038071a0):
        Max MPDU length: 3895
        Supported Channel Width: neither 160 nor 80+80
        short GI (80 MHz)
        TX STBC
        SU Beamformee
    VHT RX MCS set:
        1 streams: MCS 0-9
        2 streams: MCS 0-9
        3 streams: not supported
        4 streams: not supported
        5 streams: not supported
        6 streams: not supported
        7 streams: not supported
        8 streams: not supported
    VHT RX highest supported: 0 Mbps
    VHT TX MCS set:
        1 streams: MCS 0-9
        2 streams: MCS 0-9
        3 streams: not supported
        4 streams: not supported
        5 streams: not supported
        6 streams: not supported
        7 streams: not supported
        8 streams: not supported
    VHT TX highest supported: 0 Mbps

This section will be totally missing if your card does not support 802.11ac.

Hence, on a card that doesn't support 802.11ac:

$ iw list | grep VHT

On a card that does support 802.11ac:

$ iw list | grep VHT
        VHT Capabilities (0x038071a0):
        VHT RX MCS set:
        VHT RX highest supported: 0 Mbps
        VHT TX MCS set:
        VHT TX highest supported: 0 Mbps
  • 1
    Why do you ask a question and answer it? – Julie Pelletier May 16 '16 at 4:29
  • 11
    @JuliePelletier Because this question wasn't on the Stack Exchange network yet. It took me a while to find the solution, and so I'm sharing it with others. It's also encouraged to answer your own question on Stack Exchange. – Sparhawk May 16 '16 at 5:00

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.