High-strength environmentally friendly plastic?Lightweight and portable, sturdy and durable, and more stable for a long time. Compatible with multiple operating systems?win98 / 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 required?Plug and play, more convenient connection.