Micro USB & standard USB heads： -USB Type-A connector：SuperSpeed USB 3.1 Gen 1, backward compatible with USB 2.0 specification -Micro USB connector ：Hi-Speed USB 2.0 *The 2 connectors cannot be plugged in any device simultaneously. USB bus powered; No external power required -Windows 10/8.1/8/7, Mac OS 10.6.X or above, Linux 2.6.X or above -Android 4.1.X or above (Mobile devices must support OTG function) -Plug and play -Compatible with USB On-The-Go (OTG) feature 0°C to +60°C (32°F to 140°F) -20°C to +60°C (-4°F to +140°F)