Top critical review
Great for Nintendo Switch, but slow on PC, not true gigabit
Reviewed in the United States on January 29, 2018
Positives - Works very well with Nintendo Switch
Negatives - Not true gigabit, chipset is not fast enough, maxes out at around 550Mbps.
Switch is seeing about 100-120Mbps down and 80Mbps up, pretty decent and likely as fast as the Nintendo eShop will run.
But on the PC side, it is obvious this AX88179 chipset is not robust. With this UGreen (and another AX88179 based adapter) I hit a throughput wall of about 550Mb no matter whether flow control or offloading is off or on. I have a similar USB3 adapter that uses a Realtek chipset RTL8153 that hits 930/930 from my gigabit connection (which is blazing fast when you consider there is also overhead on that throughput).
For Switch the AX88179 is a great solution (as I don't think Realtek chipsets are supported), but if you are getting an adapter for PC and are actually looking for gigabit throughput, look elsewhere, eg, RTL8153 based adapter.