Fits 2.36 inch / 60 mm standard grommet hole. Please confirm your desk hole diameter is 2.36" before purchasing. Designed for easy access to PC ports from your desktop. You can mount the USB hub in the grommet hole to maximize desk space and keep cables organized. Plug and play and supports hot plugging. An LED light shows the working status. To use, simply insert the hub into the table hole following the installation steps. Performance and compatibility. Data transfer speeds up to 5 Gbps. Works with Windows, Linux, and Mac OS systems. Use scenarios - Clean and organized workspace: mount the hub in a desk grommet to keep front ports accessible while reducing clutter. - Shared conference or study area: mount in the table hole for convenient, centralized USB access for multiple users. - Fast data transfers: connect external drives or peripherals and transfer large files quickly, such as an HD movie, thanks to up to 5 Gbps speeds.