This Thunderbolt 3 USB 3.1 multi-channel hub controller delivers maximum USB performance adding four independent dedicated USB ports to your Thunderbolt 3 laptop sharing 20Gbps of bandwidth High-speed Thunderbolt 3 hub for connecting bandwidth-demanding devices such as 3D scanners and external SSDs High-speed USB hub lets you connect four USB devices with one USB-A (10Gbps) plus one USB-C (10Gbps) and two USB-A (5Gbps) ports USB-A fast-charge port Added Thunderbolt 3 port for daisychain