This is the genuine Apple USB to Ethernet Adapter (USB-A male to RJ-45 LAN). You should be able to use it with USB-C MacBooks if you use a conversion adapter. This compact and lightweight adapter connects to the USB 2.0 port of your Mac. It is equipped with an RJ-45 connector that supports 10/100BASE-T. I confirmed that the device appears in System Preferences on a MacBook Pro. No warranty is provided if it cannot be used in your environment. Please refer to the photos for details.