KIWIFOTOS clamps on desks headphone holder with 4 USB Ports: USB 3.0 Port x 1 + USB 2.0 Port x 3, allows you to connect keyboard, mouse, flash drive, mobile hard drive, etc. Plug and play, high-speed data transfer up to 5Gbps. Can connect USB devices such as keyboard and mouse, U disk, mobile hard disk, etc. Plug and play design, supports 4 ports for simultaneous use. Note: The USB Ports can not charge your devices, only for data transfer. 360 Degrees Adjustable: The headphone mount features a 360-degree swivel hanger that supports multi-directional adjustment for improving convenience and versatility. Under Desk Design: The spring clamp with anti-slip pads enables you to clip the hook to the desk surface between 10-40mm / 0.4-1.6" thick, This headphone hook is compatible with headphones up to 60mm / 2.4" wide, with Cable Clip Organizer. helps you save the space. Removable Gaming Headphone Hanger: Clip-on and 360 Degree Rotation arm design Headphone stand allows yo