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According to asus: RT-AX86U:1.8GHz quad-core processor RT-AX86S:1.8GHz dual- core processor RT-AX86U: 256 MB Flash 1 GB RAM RT-AX86S: 256MB Flash 512MB RAM
Sorry, there was a problem. Please try again later.The main difference between the RT-AX86U and RT-AX86S routers are the ports and RAM. The RT-AX86U has a 2.5G port and 2 USB 3.2 Gen1 ports and 1GB of RAM, while the RT-AX86S doesn't have a 2.5G port, has 1 USB 3.2 Gen1 and 1 USB 2.0 Gen1 port and 512GB RAM.
Sorry, there was a problem. Please try again later.s\One has a dual core processer and the other a quad.
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