RYRA 1PC USB 3.0 A 1 Male To 2 Dual USB Female Data Hub Power Adapter Y Splitter USB Charging Power Cable Cord Extension Cables . Product name: USB3.0 One 2 in 1 data cable Length: 15m Colour: Black Applicable devices. U-disk, keyboard, mouse Specifications: Feature: - Compatibility. This product adopts the USB3.0 high standard protocol, the transmission speed can reach 5Gbps, the actual speed is about 500MB/s. Backwards compatible with USB2.0 and USB1.1. - USB3.0 male to female extension cable with USB power supply USB3.0 one male to two female extension cables - One USB3.0 to one usb3.0 female cable plus one USB3.0 female cable - Where the USB3.0 female supports power USB3.0 data transfer - 15cm USB one drag two: thick line is data charging, thin line can only charge (can not read data). Package Included: 1USB3.0 one-in-two data cable Notes: Cautions. The thick cable is a data cable (you can read files and videos from your USB stick or removable hard drive by plugging it into the USB socket), the other thin cable can only be charged. Not both are for data transfer and charging, please note! ! !