@TheCoolest: Wow, that’s impressive! I just ordered one.
Thank you for the above information.
TBH, that is what I would expect when connecting such a gigabit USBNet dongle to a USB2 port. Not long ago, I bought a Kebidumei 100Mbps Micro USB 2.0 RJ45 Network Adapter under US $2 and it has an ASIX AX8872b USBNET chip. I use it on my Seagate Dockstar with debian OS and it’s capable of pumping out 90+ Mbps (around 10 MBps data) up/down stream when tested using this Digirati F3 utility to an NFS drive on a Seagate GoFLEX Home.
For Ethernet I use TP-Link UE300 https://www.tp-link.com/us/products/details/cat-5523_TL-UE300.html
It works great.
I purchased the one mentioned by The Coolest but still had stuttering and buffering (even with adjustments via the advancedsettings.xml) when playing high bitrate 4k files.
After that I purchased the one from ugreen (with a different chipset) and it worked fine.
But in the end I switched boxes and went for a S912-box with Gbit LAN (and I am happy with it)
I ordered this one from Amazon and it works great: