Modem 5ghz. Whats more 80211n also. The 5 GHz band is a shorter wavelength meaning it offers a shorter range of coverage.
Similarly if youre doing a lot of high-bandwidth activities online such as gaming or videoconferencing its best to use this frequency and move as close as possible to the router. The 5 GHz band is often considered superior to the 24 GHz band due to its faster speeds and stronger connection but because it has a shorter wavelength the signal strength is. First the maximum speed you might see is also dependent on what wireless standard a router supports80211b 80211g 80211n or 80211ac.
On the other hand the 24 GHz channel has its entire range within the band of same frequency.
If it says that the network adapter supports 80211a or 80211n network modes this means that the computer that you are using has the 5 GHz network capability. If the network adapter supports network mode 80211n. On the Command Prompt window enter netsh wlan show drivers then press Enter. First the maximum speed you might see is also dependent on what wireless standard a router supports80211b 80211g 80211n or 80211ac.