Simplistic. Speedy. Expansive. Complement your computer with added ports and style. Apple fashion Solid aluminum body with rounded corners complements your Apple-style desktop or laptop. Ultra-miniature (3.3 × 1.8 × 1.1in) and lightweight (3.9oz), free yourself from cable-chaos and put your workspace back in order - all without taking up too much space. Intuitive design The provided velcro strip fixes the hub in place - under the monitor, beside the laptop or wherever seems best to you - and facilitates one-handed plugging and unplugging. Horizontally-positioned ports give a wider berth for over-sized USB connectors. Green LED indicator reveals the power status. Taken together, we"ve made accessing your data as easy and intuitive as possible. SuperSpeed × 4 Don"t deny your devices access to SuperSpeed ports. With transfer rates of up to 5Gbps, set aside less time for syncing and more time for work (or play). With 4 data terminals to choose from, forget about ever having to switch or unplug again. System Requirements: Windows XP / Vista / 7 / 8 / 10, Mac OS 9.1 and above, or Linux. Mac OS X Lion 10.7.4 users should upgrade to Mountain Lion 10.8.2 or later to avoid unstable connections. Power Usage Alerts: - To ensure a stable connection, don"t use this hub with high power consumption devices (those exceeding a combined current of 0.9 Amps among all ports) such as some large-capacity hard drives. - This hub is not meant to serve as a stand-alone charger. It is not compatible with iPads or any other devices with irregular charging requirements. Additional Notes: - Some USB 3.0 devices require direct connection to host ports. - 2.4Ghz wireless devices (keyboards, mice, etc.) may not work around USB 3.0 ports. Try using a USB 2.0 connection instead.