I notice that there is a sale pricing for the Wavlink 5Gbps USB-C to Ethernet adapter on Shopee today. More interesting is the notes about speed and compatibility limitations posted, which is quite helpful to take note for Realtek-based 5Gbps adapters:
Notes:
1. To achieve the optimal network speed, please make sure the USB port connected speed is 10Gbps; When the USB port speed is 5Gbps, the maximum Ethernet speed is around 3.3Gbps.
2. The default speed for MAC OS is 5Gbps, manually selecting the highest speed should be at 2.5Gbps; This issue is related to the MAC OS driver and manual settings are not recommended.
3. There are speed differences on MacBook.
* M3 chip. Dual direction maximum speed can reach 4.6Gbps.
* M1 chip. Dual direction Transmit/Receive. One direction can reach 4Gbps, the other 2.5Gbps. Single direction maximum speed can reach 4.7Gbps.
* 2017 Intel i7 chip. Dual direction Transmit/Receive. One direction can reach 3.1Gbps, the other 1.3Gbps. Single direction maximum speed can reach 4.7Gbps.
* 2017 Intel i5 chip. Dual direction Transmit/Receive. One direction can reach 2.9Gbps, the other 900Mbps. Single direction maximum speed can reach 3.8Gbps.
4. The speed are related to the computer CPU performance. Because this Ethernet adapter will consume computer's CPU resources.
On Surface Laptop Go(CPU i5-1035G1)Win11 OS will have same issue. Dual direction Transmit/Receive. One direction can reach 4.7Gbps, the other 623Mbps. resulting in CPU usage at 100%.
Realtek will provide the minimum configuration requirements soon.
If the above issue would made a negative impact on your user experience, please purchase with caution.
Compatibility:
Compatible: Windows, macOS, Linux, and Chrome OS, USB-C (5Gbps), USB 3.0, and Thunderbolt 3 Systems, Microsoft Windows 10, 8.x, 7, Vista and XP, macOS 10.6 and above, iPadOS
Compatible: Linux kernel 3.2 and above (basic support, install driver or update to 5.x kernel for full support), Supported on up-to-date Chrome OS systems
Compatible: Plug and play for Windows 10, Mac OS 10.13.6 to 11.x, iPadOS, Linux Kernel 5.x and above, up-to-date Chrome OS.
Not Compatible: ARM-based Windows RT and Windows Mobile, Nintendo Switch, Most Android devices, TiVo Series 2, Wii, or other non-PC/Mac platforms, Not recommended for use with FreeBSD or pfSense