Is the "Thunderbolt to Gigabit Ethernet Adapter" the Thunderbolt 3 cable for IMac?

It is if you want to connect the iMac to a wired network. But iMacs have built in Ethernet ports, so not sure why you would need that.

Ethernet Port

What exactly are you attempting to do?

What do you need the adapter for?

SamIturra wrote:

Is the "Thunderbolt to Gigabit Ethernet Adapter" the Thunderbolt 3 cable for IMac?

What is the issue (?)

Does the iMac have its own built in Ethernet port?

Thunderbolt to Gigabit Ethernet Adapter - Apple