USB 3.0 Fast Transmissionuni Ethernet Adapter supports 10/100/1000 Mbps at fast USB 3.0 speeds and is also backward compatible with both USB 2.0 and USB 1.1. Note: To reach 1Gbps, make sure to use CAT6 & up Ethernet cables. The speed of USB 2.0 will be limited to 10/100M. Plug & PlayUSB to Ethernet adapter serves as the bridge between RJ45 Ethernet cable and your USB 3.0 devices and does not require any driver or software installed. Choose uni and enjoy your hassle-free network speed boosting experience. (Note: driver is required on Win 11. You can find the User Guide in the 'Product guides and documents' section of the listing.) Secure & StableWired network is known as being securer and more stable than wireless connections, and uni's USB to RJ45 adapter is the perfect solution to maintain a safe and smooth network during online classes, video conferences, downloading large files, video streaming and gaming on your USB 3.0 devices.