etables

Hi dear RT-AX88U owners, Could you please help me to find out if RT-AX88U have GMAC3 or not? I have GMAC3 on RT-AC88U and it is set a limit to me when enable some etables rules in firewall. For instance if I want to drop 2.4Ghz and 5 Ghz traffic to one IP, only the rule with 2.4Ghz is working...