Acasis H027 Mobile Tablet PC Charging Cable OTG Micro USB HUB 3Ports Simultaneous Charging Power Transmisson Cable Black if you want to OTG + Charging, your operating systems should be W8 if your operating systems is others, you just can OTG alone or charging alone. Before Purchase, Pls Kindly Check If Your Device Supports Micro USB and OTG Function, Many Models Can Support It, But If You are Not Sure of It, Please Google It Supports OTG Function and Charge Electricity. Compatibility, Support for Android, Win8, Win7, Vista, XP, Window 2000, ME, Linux and Other Operating Systems.