Welcome to Lenoviva Technology co.， LTD store Multi Micro USB Hub+Card Reader 2.0 OTG Combo USB Splitter With Power Charger Extension Port Hubs for Phone Computer PC Laptop Feature Interface: 4 x USB 2.0 output， 1 x USB input， 1 x DC 5V in Powered by: AC/DC Adaptor Input: AC 110-240V 50/60Hz Output: DC 5V 1000mA Plug standard: US/UK/EU (choose the suitable adapter as you like) Operation Systems: Windows Vista， Windows XP， ME， 2000， 98， Linux 9 and Mac OS 10.2 or above Working humidity: 10% - 90% Working voltage: 5V Working current: 500mA Working temperature: -20C - 75C Storage temperature: -40C - 85C Item weight: 50g Package weight: 120g Package Including: 1 x USB 2.0 High Speed Hub+card read Dear Friend， If you have any needs， Please let us know ， We'll help and respond in 24 Hours.