EXPANDABLE - With this hub, add up to 10 additional USB devices easily to any USB-capable computer. Never run out of USB ports on your desk again. COMPATIBLE - Compatible with any Windows, Mac, Chrome, Linux or other system with standard USB-A ports. Forward and backwards compatible with all USB 2.0 or 1.1 host controllers and devices. USB 2.0 speeds up to 480 Mbps. Fully plug and play. POWER - Included 5V 4A power supply. Two flip-up ports support independent charging when not connected to a host computer. DESIGN - Master blue power LED. Sleek piano black finish. Six ports in front and four rear ports to minimize cable clutter and maximize accessability. Two of the rear ports flip-up to a vertical position to allow for easy access and insertion of USB flash drives and other devices with one hand. 2 YEAR WARRANTY - We love our Plugable products, and hope you will too. All of our products are backed with a 2-year limited parts and labor warranty as well as Seattle-based email support