Description This item is a professional extension dock adapter. Made of premium material, it is durable and practical for long time use. It is widely used for laptop and computers. Also, it is the great and clever gift for business, trade fair, advertising for your friends. Features - Color: Black - Material: Aluminum - Size: About 10.40X3.70X2.40cm/4.09X1.45X0.94in - USB Ports: 4 - Date Transfer Rate: Up to 5Gbps - Accessing your media is easy with the hub and no drivers are required. - The item is made of premium material, which is safe and reliable and can be used for a long time. - USB power supply mode and DC power supply mode. - The product is a nice gift for your friends and a good helper in your daily life. - Simple and high-quality shell, high efficient heat dissipation, lightweight but sturdy, crush resistance and durable. Accessing your media is easy with the hub and no drivers are required. The item is made of premium material, which is safe and reliable and can be used for a long time. USB power supply mode and DC power supply mode. The product is a nice gift for your friends and a good helper in your daily life. Simple and high-quality shell, high efficient heat dissipation, lightweight but sturdy, crush resistance and durable.