Micro USB OTG Dual Port Hub & TF/SD Card Reader With Charge Port for Tablet & Cell Phone 

Your phone/tablet must built-in OTG function.

The hub and card reader can connect the phone/tablet to the usb device. it also can charge the phone/tablet at same time.

it support the usb flash disk・?keyboard・?mouse and TF/SD memory card.

there are 3 positions for the switch:

Switch 1: General OTG Model

Switch 2: Windows tablet charging and OTG work mode

Switch 3: Windows tablet・窟ndroid Mobile charging and OTG work mode.

(note: not all phone/tablet support the charge function・?please see the belowing list for detail:)

Belwing phone/tablet can OTG/Charge at same time:

1. Android Phone:

     Samsung Galaxy  S3   (Switch3)

     Samsung Galaxy  S4   (Switch3)

     Samsung Galaxy NOTE2 (Switch3)

     Samsung Galaxy NOTE3 (Switch3)

     Google Nexus 7/ Nexus 8 / Nexus 9 / Nexus 10 (Switch2)

2. Windows Tablet/Phone (Your Need to Restart the tablet/phone sometime):

     Dell Venue 8 Pro

     Sony LT26i

     Acer W4-820

     Asus T100TA/ME400C

     LENOVO MIIX2 8/ THINKPAD8

     TECLAST X98 / XT80H / X10HD / P89

     CHUWI P89 / VX8

     ONDA V975W/819W/V820W/V919

     LIVEFAN F8C

     RAMOS I8PRO

     VIDO W8A/W8C

     CUBE IWORK7/IWORK8

     PLOYER MOM08W

     COLORUL I108W/I818W