Welcome to the store! With 2/4 USB ports, 2/4 computers can share 1 USB-compatible device like a printer or scanner. It's convenient to switch, just press the relative button. No additional software required. Standard USB2.0 port, with fast data transfer and backward compatible with USB1.1. The adapter requires no external power. Compatible with: Windows 98, Me, 2000, XP, MAC, MAC 10 systems. This sharing switch allows 1-2/4 computers to share an external device with a USB interface such as a printer, scanner, plotter, Bluetooth device, etc. When multiple computers share an external device, the purchase cost of office equipment can be greatly reduced, and more space is saved. This product will bring great convenience to your work, it is worth buying. Features: 1. With 2/4 USB ports, 2/4 computers can share 1 USB-compatible device like a printer or scanner. 2. It's convenient to switch, just press the relative button. No additional software. 3. Standard USB2.0 port, with fast data transfer and backward compatible with USB1.1. 4. The adapter requires no external power. 5. Compatible with: Windows 98, Me, 2000, XP, MAC, MAC 10 systems. Specification: Material: Iron shell Color: Black Interface: USB2.0 Style: 2 Ports, 4 Ports (Optional) Size: 11.2 * 6.6 * 2.4cm / 4.4 * 2.6 * 0.9in Weight: Approx. 137-158g Package List: 1 * Sharing Switch Note: Please note that the new type and old type of this product will be sent randomly, and please make sure you don't mind before ordering. We strive to achieve your satisfaction and provide you with a good shopping experience. If you have any questions after receiving the goods (different product quantities, damaged packaging, etc.), please contact us in time! We will provide you with the best solution.