Features: 1.5Gbps: The USB 3.0 hub supports transfer speeds up to 5Gbps (USB 3.0), 480Mbps (USB 2.0), 12Mbps (USB 1.1), instantly adding four USB 3.0 ports to any compatible device. 2.Four Ports: The USB 3.0 hub adds four additional USB ports to your PC, allowing you to connect USB devices such as digital cameras, phones, external hard drives, flash drives and printers in one convenient place. 3.Compatible: Stylish style design, perfect for IOS Laptop Pro, for IOS Laptop Air, for IOS Laptop, etc. Compatible with all for Windows, for OS X, for Linux systems. 4.Slim Design: The USB hub features a slim design, saving you valuable desk space. It's very portable and easy to move between systems or use on the go. 5.Plug and Play: The USB hub is easy to set up, plug and play, and hot-swappable, it doesn't require any software or complicated installation process. specification:Item Type: USB 3.0 Hub Material: Aluminum alloy Interface: USB 3.0, Compatible with USB2.0, USB1.1 Number of Ports: 4 USB 3.0 Ports Data Transfer Rate: 5Gbps Bus Power Limit Current Protection: 500mA to 900mA Overload Protection: Yes OTG: Support Color: Silver PackageList:1 x USB3.0Hub