Product Description Easily add up to three devices with the SABRENT USB 3 0 Rotatable Hub Effective for all computers and laptops and particularly those that come with a limited number of ports Avoid interchanging your USB devices and having to decide between synchronizing your phone or working with your external hard drive By utilizing the SABRENT USB 3 0 Rotatable Hub you can employ all of your devices at once Please Note 2 4Ghz wireless devices such as wireless keyboard and mouse adapters may not work in close proximity to USB 3 0 devices or hubs Connecting to a USB 2 0 port is recommended For a stable connection the devices connected to the 3 Port USB 3 0 Hub must not exceed a combined current of 5 volts 900 mAh External hard drives should be connected to an external power source This 3 Port USB 3 0 Hub will not charge your devices it will only sync Easily add up to three devices with the SABRENT USB 3.0 rotatable hub. Effective for all computers and laptops and particularly those that come with a limited number of ports. Avoid interchanging your USB devices and having to decide between synchronizing your phone or working with your external hard drive. By utilizing the SABRENT USB 3.0 rotatable hub, you can employ all of your devices at once. Features: sleek style design, ideal for Mac Pro, I Mac, MacBook Air, MacBook Pro, MacBook, and Mac Mini. USB connector can be rotated 90°/180° degrees. portable, compact, lightweight design makes it travel friendly. easy setup, plug n play, hot swappable, hot Pluggable. Compatible with all Windows/Mac/Linux systems.