ADD USB-A PORTS TO YOUR DEVICE: This USB 3.1 portable hub adds 4 USB-A ports to your Mac, Ultrabook, Chromebook, PC, tablet or other USB device with limited ports. Great USB charger for charging multiple devices at once at 1.5 A per port. With speeds up to 5Gbps, this USB dock offers fast data transfer for up to 4 USB 3.1 enabled devices. EXPAND USB FUNCTIONALITY: Specifically designed for use with the MacBook, Google Chromebook and other laptops, tablets and devices equipped with a USB-C or Thunderbolt 3 port. This USB dongle accepts up to 4 USB peripherals, turning your laptop into a mini workstation. Common peripherals include a mouse, keyboard, external drive, printer, microphone, and more. PORTABLE AND DURIBLE: Slim housing fits easily into purse or laptop bag for use anywhere, great for business-travel to increase the potential of on-the-go work stations. Aluminum design ensures long-lasting, durable functionality.