Connectors: USB 3.0 type A 1 male to USB 2.0 type A female & USB 3.0 Female. Suitable for LED power lights, PC. Notebooks, etc. Upgrade Function: USB 3.0 Male is for all USB Devices for Data Transfer & Power. This sync USB3.0 power adapter Y cable can solve issues as one USB port unable to supply sufficient power, fixing problems with low-powered USB port. BUT this USB Splitter cable have two female plug, the one of USB 2.0 Female Jack Port is not fit for data transfer, only to support the charging, the other one of USB 3.0 Female Jack port can support the data transfer and charging. This dual usb splitter allows for power to be taken from 2 USB ports(usb3.0 + usb 2.0 ) female juck, such as a PC, external hard drive, intermittent, keyboard, audio The USB Y splitter cable is commonly used in USB 2.0 device, just plug and play, easy to use. HD Speed Data Transfer Rate: up to 512Mbps. Package include: USB 3.0 Male to USB 3.0 Female +USB 2.0 Female, Gold Plated Cable - 20inch, Black