Dell D3818DW: How to connect KVM between PC and Macbook pro mid-2012?
No, that product cannot be used for this purpose as it does not transfer the actual display signal (i.e. what would be called Alternate Mode in USB-C), nor is it for connecting newer TB3/USB-C devices to an older computer - it is actually for connecting old TB/TB2-devices to a new TB3 computer.