That setting should be present on every model with a USB 3.0 port.
but the merlin present "enabled" on my RT-AC1900P, as I know asus fixed the "usb3.0" 2.4Ghz bug with AC1900P ... or i am wrong?
If you're not using the USB3 port, feel free to disable that feature...
Only comes into play if the port is used, and.. if the device attached to the port is USB3
It's mostly the quality of the cable with the USB3 devices...
USB2 devices plugged into the USB3 port - not at issue...
I just want plug a 128G sandisk cz88 flashdrive without cable
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