Our ARTICONA brand delivers high-quality and reliable IT products at a price that won't blow the budget to boost workplace efficiency. Connect up to four USB 3.0 devices to your computer or notebook at the same time. USB-powered, no AC adapter required Highlights: Up to 5 Gb/s transfer rate Bus powered power supply not included. USB power supply 5 V / 0.5 A (up to 2.5 W power delivery). Connectors: 1 x USB 3.0 Type-A male, 4 x USB 3.0 Type-A female