Travel laptop supply: convert USB type-c port on your laptop into 4 USB 3.0 ports and 1 USB type- port.
USB c to converter: plug in 5v power adapter (not included) through USB type-c port to power large capacity hard drive.
Laptop supply: supports 4 USB 3.0 ports working at the same time, no need to plug and unplug constantly.
Accessories: connect with phone or tablet (via otg), easy to read file and photos on USB drive.
USB hubs: high USB 3.0 ports, up to 5gbps data transmission speed, copy large file easily and quickly.