Big Expansion: Instantly transform one of your computer's USB ports into four, quadrupling your USB input capacity. Fully plug and play, easy setup, hot plugged, hot swappable. Ultra Compact: 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, and Linux/Unix computers at USB 2.0 speeds. Compatible with Win95 osR2/98SE/Me/2000/XP, Linux 2.4, and OS 8.5. 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. Supports hot swap, low power consumption, no driver required, plug and play. Easily add up to 4 devices with the USB 2.0 Hub. Ideal for devices with a limited number of USB ports. Achieves full 480 Mbps on each port. Fully backward compatible with USB 1.1 products. No Charging Capabilities: This 4-port hub is for data transfer only and does not support charging connected devices. Functions as a USB hub only and will not charge phones, tablets, iPads, or other tablet and smartphone devices with or without a PC connected. Not BC 1.1 / 1.2 compatible. Devices Not Compatible With This 4-Port Hub: This hub cannot be used with built-in car stereo systems or systems such as Android Auto and CarPlay, as these systems do not support USB hubs. More Ports: Maximize your time by connecting multiple USB devices instead of using one at a time. Compact Design: Weighing approximately 0.9 ounce, the data hub is designed for portability. Ideal for both stationary and mobile use. Plug-and-Play: Supports hot swapping no driver installation required. Safety-Cover Design: Effectively protects USB connectors from damage and dust. Stay Organized: Connect all your devices, such as a printer, card reader, cell phone, thumb drive, mouse, keyboard, or an external hard drive. Color: Black Material: ABS Size: 8.3 x 2.3 x 2.6 cm Package Contents: 1 x 4 Port USB Hub Note: This data hub is USB bus powered and requires no additional AC power, eliminating the need for a bulky adapter. This USB Hub 2.0 is not for charging. It 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 items listed above are included; other products are not included. Note: Lighting and different displays may cause the color of the item in the picture to appear slightly different from the actual item. Measurement allows an error of +/- 1-3 cm.