Plugable Rotating 4-Port USB 3.0 Bus-Powered Travel Hub
As a bus-powered hub, it's great for USB devices with low power draw like wired keyboards and mice, flash drives, and card readers. USB devices which have higher power draw such as bus-powered hard drives and CD/DVD drives are not recommended.
Perfect for systems like the Microsoft Surface Pro series and others with limited USB port availability.
Rotating USB Connector for Flexible Placement
Power, Specifications & What's in the Box