Power supply specification Wall power supply Input: AC 100 ~ 240 V / 50 ~ 60 Hz / 0.25 A Output: 5 V / 1 A Ground outside, plus inside Dimensions: inside: ø ca. 1.1 mm outside: ø ca. 3.5 mm length: ca. 7.0 mmSystem requirements PC or laptop with a free USB Type-A portPackage content USB 3.2 Gen 1 cable External power supplyPackage White Box