Port expansion: Up to 4 ports can be connected with one computer's USB port. • High-speed data transfer: HD video can be transferred in seconds with data transfer rate of up to 5 Gbps. • Ultra-compact: Since it is compact size of about 30 grams, it can be carried easily. • High ruggedness: Reinforced cables and heat-resistant terminals provide high protection and can be used for a long time. • Package Contents: Anker USB 3.0 Ultra Slim 4 Port Hub