Brand - Havit, Model - Havit H91 4 port USB Hub, Type - 4 port USB 2.0 Hub, Use For - USB Hub, Features - USB 2.0 Hub, 480Mbps high speed transmission, Extended 4 USB Ports, each Power Supply up to 500mA, Color - Black, Others - working Voltage: 5V, Quiescent current: 50mA, Working current: 100-500mA, Interface include: 4 x USB2.0 Hub, Intelligent Charging Voltage/ Current: 5V/500mA, OS Supported: Windows 7, 8, 8.1, 10, Vista, XP, Mac OS 9.X, 10.X, Linux, Apple, Google, Country of Origin - China, Made in/ Assemble - China, Warranty - 1 Year