1. Brand new and high quality 2. Portable, easy to carry 3. Connect up to 2 devices without a power adapter 4. Eliminate the hassle to switch devices constantly 5. Over-current protection 6. Plug and play 7. The power adapter is not included Specification: General Types HUB Compatible System Windows 2000, Windows 2003, Windows Me, Windows 7, Windows 8, Windows XP, Windows Vista