USB2.0 HUB for mobile charger * multi functional * USB2.0 HUB * Moq: 100pcs * factory price, fast delivery Good quality USB2.0 HUB for mobile charger, for iphone 4 usb data cableSpecification ... for iphone/ipads, 3 hubs can connect to other devices(card reader,notebook,usb flash driver,keyboard,ect.)transfer rate is ...