High-strength environmentally friendly plasticLightweight and portable, sturdy and durable, and more stable for a long time. Compatible with multiple operating systemswin98 / Me / 2000 / XP / Visa / Win7 / Win8 / Win10 / Mac Osv8.6 or higher. widely used Ideal for use with USB cameras, printers, web cams, keyboard/mouse extensions and any other USB devices. No power requiredPlug and play, more convenient connection. Please noteThe maximum distance between this USB device and the computer can reach 150 feet, but more than 30 feet need to be completed with high-quality network cable! Otherwise it will lead to instability, ordinary network cable under 30 feet is enough!