Anker 4-Port USB 3.0 Ultra-Slim Portable Data Hub with 12W Power Adapter for MacBook, Mac Pro/Mini, iMac, XPS, Surface Pro, Notebook PCs and More The Anker Advantage: Join the 20 million+ powered by our leading technology. SuperSpeed Data: 4 USB 3.0 ports provide speeds of up to 5Gbps. Transfer HD movies in seconds. Slim and Trim: Only 1cm thick and 1.23 oz, smaller than a bar of soap for easy portability. Multifunctional Charger: Charge your devices and power the hub at the same time with the included power supply. What You Get: 4-port data hub with built-in USB 3.0 cable, dual-purpose charger, 2ft Micro-USB cable, welcome guide, our worry-free 18-month warranty and friendly customer service.