Big Expansion: Instantly transform one of your computer's USB ports into four, quadruple your USB input capacity. Fully plug and play, Easy Setup, Hot plugged, Hot Swappable. Ultra Compact: Lightweight and safety-cover design enables the multi port usb hub to be mini and portable, perfect for static use and on-the-go.Powerful Compatibility: Works with USB 3.0, 2.0, or 1.1 host controllers and devices on Windows, Mac, and Linux/Unix computers at USB 2.0 speeds. Operating system: Win95 osR2/98SE/Me/2000/XP, Linux2.4 and Mac os8.5VASTA and above.Transfer rates are device and USB host controller dependent.The product is suitable for U disk, card reader, USB mouse, USB keyboard, scanner, digital camera digital video camera, USB sound card, hard disk box and other equipment. Support hot swap, low power consumption, no driver, plug and play. Easily add up to 4 devices with the USB 2.0 Hub. Particularly great for recent notebooks that provide a limited number of USB ports. Achieve full 480 Mbps on each port. Fully backwards compatible with the USB 1.1 products.No Charging Capabilities:This 4-port hub is for data only and does not support charging of the connected devices. Functions as a USB hub only and will not charge phones, tablets, iPads, iPhones, or other tablet and smartphone devices with or without a PC connected. Not BC 1.1 / 1.2 compatible.Devices That Are Not Compatible With This 4-Port Hub:This 4-Port hub cannot be used with built-in car stereo systems or systems such as Android Auto and Apple CarPlay as these systems do not support USB hubs. More Ports Maximize your time by gaining the ability to plug in multiple USB devices instead of having to choose to use just one at a time. Compact Design Weighing around 0.9ounce, the Data Hub is designed to be as portable as possible. Perfect for static use and on-the-go. Plug-and-Play Supports hot swapping - no driver installation required. Safety-Cover Design Effectively protect USB connector from damage and dust. Stay Organized Gives You The Ability To Connect All Your Devices, such As A Printer, Card Reader, Cell Phone, iPod, Thumb Drive, Mouse, Keyboard, Or An External Hard Drive. colour:black Material:ABS size:8.3 x 2.3 x 2.6cm Package Contents: 1 x 4 Port USB Hub NOTE: This data hub is USB bus powered, requires no additional AC power, eliminating the need for a bulky adapter. x This USB Hub 2.0 is not fot charging. Functions as a USB hub only and will NOT charge devices. For a stable connection, avoid connecting high power-consumption devices, such as external hard drives. External hard-drives should be connected to an external power source. This 4 Port hub will not charge your devices, it will only sync them. Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.