Micro USB to Dual Ports Micro USB Female Hub Cable For Laptop PC Mouse Flash Disk Two Micro usb port can work at the same time.(The Micro usb female only support OTG device like micro usb flash disk, hub, not work for power) It can't charge the micro usb host device via micro usb female port Length: 30cm For Laptop Macbook Notebook PC Mouse Flash Disk can connect the micro usb mouse, micro usb keyboard,micro usb flash disk,micro usb card reader etc. can connect the micro usb hard disk.(need to connect the external power)
