iDsonix Uspeed 7 Port USB 3.0 Hub with 12V/2.5A High-Capacity Power Adapter (VIA Dual VL812 Chipset and updated firmware with Linux, OS X, and Windows support and full USB 2.0/1.1/1.0 backward compati Full forward and backward compatibility between USB 3.0 and 2.0/1.1/1/0 hosts and devices. Requires no driver install (although individual devices will, as usual). 7 USB 3.0 ports - connect USB devices such as external hard drives, mp3 players, mice, digital cameras, printers, etc. Featuring a simple yet flexible design, provides easy expansion for any USB capable system. CE and FCC approved