Specifications: Allows for power to be taken from 2 USB ports, like a PC and external hard drive. Allows you to link 1 USB device into 2 USB ports on your PC for more power. You may have an external device, such as a portable 2.5 hard drive, and a standard USB cable is not able to transfer enough power to operate the device. This problem can be easily solved by using this USB 2.0 Y cable. Type: USB 2.0 Male to 2 Female Extension Cable Material: Plastic + Metal Connectors: USB 2.0 Male, 2 x USB 2.0 Female Features: Durable, Practical, Plug and Play Cable Length: 39.5cm(Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 2 x USB 2.0 Male to 2 Female Extension Cables