Wireless N7265 without dual channel?

I bought a Mountain Onyx with Wireless N7265 dual channel. I've installed intel windows 10 drivers (18.12.1.2) but I cannot find 5Ghz network.

>netsh wlan show drivers

Nombre de interfaz: Wi-Fi

    Controlador                : Intel(R) Wireless-N 7265

    Proveedor                  : Intel Corporation

    Proveedor               : Intel

    Fecha                      : 29/07/2015

    Versión                    : 18.12.1.2

    Archivo INF                : C:\WINDOWS\INF\oem26.inf

    Archivos                   : 3 total

                                 C:\WINDOWS\system32\DRIVERS\Netwtw02.sys

                                 C:\WINDOWS\system32\DRIVERS\Netwfw02.dat

                                 C:\WINDOWS\system32\DRIVERS\vwifibus.sys

    Tipo                       : Controlador Wi-Fi nativo

    Tipos de radio admitidos    : 802.11b 802.11g 802.11n

    Modo FIPS 140-2 compatible: Sí

    Protección de trama de administración de 802.11w habilitada: Sí

    Red hospedada admitida: no

Mountain technical support say it's a problem drivers. I don't know if it's really a problem drivers or Mountain try to scam me. How I can be sure my wifi card is dual?

The hardware Id is "PCI\VEN_8086&DEV_095A&SUBSYS_50028086&REV_50"