Feature: Made of high-quality material, durable, firm and stable for us to use. USB coupler connects any USB 3.0/2.0/1.x cable with the full-sized Type A connector to another USB cable. Extend the length of an existing cable or connect to an installed cable located in the back of a computer,connect to USB male to male cable,will become a USB extension cable. It provides up to 5 Gbps data transfer rate while supporting backwards compaility with USB 2.0/1.x cables. USB 3.0 coupler has gold-plated connectors that provide durability and resist corrosion; Easy-grip treads make frequent unplugging a breeze. Compace size and light weight, it is easy and convenient for us to take and carry. USB 3.0 Female to Female Adapter , other accessories demo in the picture is not included Specifications: Item Type: USB 3.0 Female to Female Adapter Material: Aluminum Alloy+ABS Size: 3.1cm Color: Black,Gold,Gray,Blue,Red,Pink Quantity: 1 Pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: 1 x USB 3.0 Female to Female Adapter