brand new and high quality Features: Classic design, exquisite shell, support hot swap, low power consumption. 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 devices, and expands 4 USB interfaces, each power supply up to 300Ma, using the second On behalf of the USB HUB controller, no driver is required, plug and play, up to 127 USB devices, all using first-class high-quality electronic devices, to ensure stable product operation. 1. USB binding 2.0 chip, high speed chip. 2. (Hi-speed)USB2.0 interface, the theoretical maximum speed can reach 480Mbps, and is backward for USB 1.1/1.0 standard specifications 3. Equipped with four sets of USB connectors with hot-swap function 4. Current protection function, support overload voltage and instantaneous current protection function, safe and convenient to use Specifications: Size: 5.5x1.9x3cm Material: ABS Operating humidity: 10%-90% Working voltage: 5V Working current: 500mA Working temperature: -20C-75C Storage temperature: -40C-85C Support system: Windows 95/98/2000/2003/ME/XP/Vista or Mac OS 8.1 or above (driver installation required under Windows 95/98 system) Notes: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included: 1 x Mini 3 Port USB 2.0 Rotate Splitter