AUKEY USB Hub Powered Charging, 7 Port USB 3.0 Hub with 3 Charging Ports, 4 USB 3.0 Data Ports, 12V/3A Power Adapter, Power Switch for Laptop, PC, Mac, HDD Hard Drive (Black) Massive Expansion: Turn a single USB 3.1 Gen 1 (USB 3.0) port on your laptop or desktop computer into 4 USB 3.1 Gen 1 data transfer ports and 3 AiPower Adaptive Charging ports. Easily connects 7 USB devices to your PC,laptop simultaneously, such as keyboard, mouse, card reader, HDD, webcam, mp3 players, oculus, etc SuperSpeed Data Transfer: Blue USB 3.1 Gen 1 (USB 3.0) ports transfer photos, videos, and music at up to 5Gbps; 10x faster than USB 2.0, let you transfer an HD movie in seconds, backwards compatible with USB 2.0/1.1 Device Charging: Green AiPower USB ports charge your phones, tablets, camera and speakers and more, at up to 2.4A per port and automatically detects and delivers the optimal charging current Powered Hub: 36W (12V 3A) AC power adapter ensures reliable & effective hub operation for all connected devices Package Contents: AUKEY CB-H19 4-Port USB 3.1 Gen 1 Hub with 3 Charging Ports, USB 3.1 Gen 1 A to A Cable, Power Adapter, User Manual, 45-Day Money Back Guarantee and 24-Month Product Replacement Warranty Card