What You Get: Sipolar USB 2.0 20-Port Data Hub and Smart Charging Ports,one USB 2.0 A - B Cables, mounting ears,power cord,our fan-favorite 12-month warranty and friendly customer service. Perfect function :Latest generation USB HUB controller;Maximum charge output of 0.9A per USB port;Charging and data sync image for 20pcs tablets/iPhone/iPad/mobile phone at the same time. Compatible operating system: Windows XP/Vista / 7/8; Mac OS. Linux. The drive installation is automatic and no need software.Just connect the USB hub with your PC,and then you can connect any USB devices with the 20 USB 2.0 ports. Professional design:Solid black matel frame, make the products durable for a long time. All ports on one side, to make clean your desk, and save your space. The mounting bracket allows you to fix the product. With some entilation holes, the hub never gets hot.And the extra 12V 10A power adapter to keep the safe charges. Ultra Fast : Data transfer of up to 480Mbps and fast charging on 20 ports gets you synced up and charger on your way.