The issue described below has been solved with the updated Realtek USB Gbe family controller released late last year. Since then I haven't had any issues with the device losing connection when waking up from sleep. I was impressed with the durability and design of the device. I connected several USB hard drives and tested their speeds with no problems. Ethernet speed gives full speed (only 500Mbps up and down could be tested) and heats up a bit. Docked with a star due to the fact that the ethernet loses connection when my laptop goes to sleep with a device connected. Only by disconnecting and reconnecting does it receive an IP address. Not a big deal if you're going to use it as a travel device, but not great if you plan to use it as a home dock.
iVANKY MacBook Pro Docking Station, 9-in-2 USB C Hub Adapter with 4K Triple Display, 100W PD3.0, Ethernet, 2 HDMI, USB-C 3.0, 2 USB-A 3.0, SD & TF for MacBook Pro/Air
9 Review
🔌 AuviPal 3-Port Micro USB OTG Hub Adapter with Power Port for Fire Stick 4K, Playstation Classic, Raspberry Pi Zero, Sega Genesis Mini, Super Nintendo NES Classic and More - Set of 2
10 Review
VEMONT 7-Port USB Hub 3.0 with Individual On/Off Switches, LED Light, and 4ft/1.2m Long Cable - USB Splitter Extension for Laptop and PC Computer
9 Review
🔌 Sabrent USB Type-C Hub with 4k HDMI, 60W Power Delivery, 1 USB 3.0 Port, 2 USB 2.0 Ports (HB-TC5P) - Multi-Port
10 Review
🔌 USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
4 Review
Verizon Wireless Jetpack 4G LTE Advanced Mobile Hotspot - Novatel 7730L
7 Review
🔌 StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review
Smartphone Nubia Z11 6/64GB
12 Review