WARRANTY -- 24-hour customer service and a 30-day return guarantee are available for GiGimundo USB hub 3.0. At GiGimundo, your satisfaction is valued tremendously. A satisfied solution will be given for ANY of your problems. STABLE & SAFE -- Equipped with a high-performance main control chip, data transmission is stable and efficient, and it can read two 1TB 2.5-inch solid-state drives at the same time. Small and lightweight, suitable for business/travel/work. PLUG & PLAY (NOT USB-C HUB) -- GiGimundo USB multi ports adapter is compatible with Windows, Mac OS 10.X and above, Linux, Android and other systems. No need to install drivers, plug into the USB 3.0 port of your laptop to enjoy 5Gbps fast data synchronization, support hot swap. 4 USB-A 3.0 USB SPLITTER -- The USB hub is backward compatible with USB 2.0, 1.1. Ideal for laptop, computer, XBOX, PS4, flash drive, keyboard, mouse, card reader, hard drive, usb fan, phone OTG adapter ( To achieve this function, mobile phone needs to support OTG function). 4 PORTS USB 3.0 HUB (Not 4 USB-C Ports, Just USB -C to USB-A Convertor) -- GiGimundo USB C Hub transfers data up to 5Gbps, which is 10 times faster than USB 2.0. HD movies can be streamed in seconds. 4 ports achieve simultaneously readings, including reading two 1TB 2.5" SSDs. (Note: USB Hub is designed for data transfer synchronization. Charging is not supported. ).