ZXTEK Micro USB OTG Cable ,35 Inches Multi-functional USB 2.0 Port on the Go Compact Portable Cell Phone High Speed Transfer Sync Charging Data Cable with Winder for Android Cellphone , Iphone MULTI-FUNCTION: Sync/Charging, Read/Write U-Disc, Mouse/Keyboard, Read/Write HDD, Charging HUB and Winder OTG MODE (With orange point): Connect Mouse, Keyboard; Read/Write U-disc, external hard drives and TF SD card reader (USB port could be connected to external power for driving the hard disk) NORMAL MODE (without orange point): USB data cable, USB charging cable and USB charging HUB WINDER DESIGN: powerful all-round reel, storage 90cm cable into 6.6cm diameter reel, convenient to carry and use Compatible with all devices with Micro USB port and OTG function