Features: new and high quality Aluminum material. Wear-resistant and durable, rapid heat dissipation, low temperature throughout. Lightweight and not burdensome. Exquisite and compacts, it takes up no space, and it does not add burden to carry around, so it is easy to pack and take away. Many devices read directly, plug-and-play, and are widely suitable for devices. This speed of this usb 3.1 to usb c/type c adapter can reach 10Gbps,and both sides can reach up to the speed,do not need to worry about that working speed. Only when the port your of device is USB 3.1,then the speed of both sides of the USB C connector can reach 10Gbps as it apply to use. Specifications: Material: Aluminum Transmission rate: 10Gbps Current and voltage: 5V@3A Size:Approx.1.98x3.28cm/0.78x1.29inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x USB 3.1 Adapter