I bought this to use with my MacBook Pro 15” 2017 so I could attach more peripherals. Unfortunately my MacBook Pro has developed a screen fault so I no longer have a need for this gadget. It’s a very useful device and easily slips into a pocket or laptop bag. It comes with a USB-C extension cable and a travel pouch. It don’t get used much before my MacBook broke so it’s in really good condition.
eBay