Product name: USB4 to single-port 10G 10G network card Transmission speed up to 10Gbps. Support for Windows, for Linux, for MacOS and other systems, for MacOS is driver-free, Windows system needs to install the driver. No need for additional power supply. Compatible with for Thunderbolt 4/3. Port type:1 RJ45 interface Interface type:USB4 (compatible with for Thunderbolt 3/4) Speed:10/100/1000M/2.5G/5G/10G Scope of use:desktop, notebook, server, NAS soft router Operating temperature:0℃ to +108℃ Storage temperature:-40℃ to +110℃ Under Windows, to ensure functionality, the following drivers need to be installed: 1. Install the for Thunderbolt driver for the computer (usually provided by the computer's manufacturer). 2. Install the network card driver. The download link is as follows Driver Download Note:It is support USB4 and also compatible with for Thunderbolt 3/4 computer interfaces. Not compatible with Type-C, USB 3.0, USB 3.1, USB 3.2, etc. Due to different production batches, the appearance may vary, but it will not affect the use. Colour:Black Material:Aluminum Alloy Package Contents: 1 * 10G Network Card 1 * data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.