DescriptionProduct size: 15.5 * 7.8 * 2.7cmProduct material: ABSColor: white, black(optional)Classic design, beautiful shell, support for hot swapping, low power consumption. The product is suitable for USB flash drives, card readers, USB mice, USB keyboards, scanners, digital cameras, digital video cameras, USB sound cards, hard disk boxes, and other devices. It is extended to 4 USB interfaces, each with a power supply of up to 300 Ma. It uses a second generation USB HUB controller, which requires no drivers, is plug and play, and supports up to 127 USB devices. All of them use first-class high-quality electronic devices, ensuring stable operation of the product.1. USB high-speed chip2. (Hi speed) USB 3.0/2.0 interface, theoretical maximum speed up to 5GB, and backward compatibility with USB 3.0/2.0/1.0 standard specifications.3. Equipped with four sets of USB connectors with hot plug function.4. Current protection function, supporting overload voltage and instantaneous current protection functions, safe and convenient to use.5. Stable working output6. Working humidity: 10% - 90%7. Working voltage: 5V8. Working current: 500mA7. Working temperature: - 20C - 75CStorage temperature: - 40C - 85C9. Support system: Windows 95/98/2000/2003/ME/XP/Vista or Mac OS 8.1 or above (drivers need to be installed under Windows 95/98 systems) Package Included: 1*Hub Note: 1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding 2. The color may vary depending on the display. Please understand Note: Hello, please pay attention to your shipping address when purchasing products. If your receiving information (such as name, street, house number, doorbell/email without name) is incorrect, the order will not be delivered correctly.)