Dimensions ( L x W x H ) : 80 x 80 x 15.2 mm / 3.15 x 3.15 x 0.6" Weight : 60g / 2.1oz Interface : USB 3.2 Gen1 ( backward compatible with USB 2.0 ) Texture : Plastic / Anti-shock Silicone Operating Temperature : 5–50°C / 41–122°F Operating Voltage : DC 5V, 900mA System requirements : Windows XP / Vista / 7 / 8 / 8.1 / 10 Mac OS X 10.6 or later Linux Kernel 2.6 or later Android 5.0 or later Accessories : USB 3.2 cable , Quick start guide Warranty : 3-year limited warranty