Desk Grommet USB Hub: Designed for easy access to the ports of a PC on your desktop. You can mount the USB hub on the grommet hole, to make full use of space for desks. And it features 2 USB 3.0 Type-A, 1x Type C data hub outlets, and 1x 3.5mm audio connection for headsets. USB 3.0 Data Hub: Instantly add 2 USB 3.0 ports to your PC. Using the USB hub to sync data at blazing speeds up to 5Gbpsfast enough to transfer an HD movie in seconds. and drive-free for Windows/Linux/Mac OS systems. 3.5mm Audio Jack: Support headsets music listening, gaming, and business conference call more convenient. The cable is 59-inch long to reach the PC underneath your table. Fits 2.36' Standard Grommet Hole: Only fit for 2.36'/60mm standard grommet hole, please make sure your desk hole diameter is 2.36' before purchasing. Dustproof and Cover: It can be hidden into the table hole when not used by the cover plate insert fits into the outer sleeve to prevent all ports from dust.