The ST7320USBC 6-Port USB 3.0/2.0 Combo Hub features a special high-output dedicated charging port which enables you to charge USB devices by providing up to 2A of power, or it can add 2x USB 3.0 and 4x USB 2.0 ports to a computer through a single USB 3.0 host connection. The hub includes an external power adapter, which when connected enables charging some portable electronic devices (e.g. an iPhone or other Smartphone), even without a USB connection to a host computer. Offering a unique design that features USB ports along 3 sides of the hub, as well as a combination of USB 2.0 and 3.0 ports, this versatile and flexible USB hub is ideal for both laptop and desktop computers. The ST7320USBC USB 3.0/2.0 hub is backed by a StarTech.com 2-year warranty and free lifetime technical support.Adding 6 USB ports (2x USB 3.0, 4x USB 2.0) through a single host connection makes it easy to expand system capability. A high output USB port can provide up to 2A of power for charging portable devices. Portable devices can be charged with just the external power Adaptor connected to the hub, so the desktop or laptop (host) doesn't need to be powered on. Add multiple USB 3.0 and USB 2.0 to a computer system to support more device connections Charge a Smartphone. Charging high-powered portable devices (such as tablets) which require special high output USB ports for charging. Make USB ports that are hard to access more accessible, by being positioning the hub in a convenient location (within cable reach). Extend the range of a USB device by having the hub act as a mid-point repeater.