The USB Hub connects to your laptop's USB Type C or Thunderbolt 3 port and features three USB-A ports and an SD card reader, so you can quickly connect more peripherals and other devices. The hub provides direct access to your SD memory cards or microSD cards as an additional medium for data storage and transfer. An adapter is required for microSD cards. This compact and lightweight USB Type-C hub is a convenient and portable addition to your laptop accessories. The USB-C cable is integrated and the hub is bus-powered, so it's powered directly from your computer's USB-C port without the need for an external power supply. That means fewer cables on your travels. The hub can draw up to 15 watts from the attached host and power multiple bus-powered devices simultaneously, with all available power dependent on the attached host. The extended 25cm attached cable provides more flexibility for more remote devices as well as plug-and-play installation. With support for USB-A peripherals, this hub is backward compatible and supports both legacy and new USB devices. You can connect flash drives, video recording devices, and external hard drives with high data transfer rates of up to 10 Gbps. This four-port USB Type-C hub gives you the connectivity you need at work, increasing your productivity.