StarTech 4-Port USB 3.0 Hub:Connect up to 4 USB 3.0/2.0/1.x devices simultaneously at their respective maximum speedsCan be used with or without an external power adapter for portabilityBackward compatible with USB 2.0 and USB 1.x standards4 USB type A portsSuperSpeed USB 3.Includes only the item and accessories specifically listed in this description.Item ships from our Florida warehouse after processing.30-day returns are accepted according to the return policy.Manufacturer warranty is not guaranteed.