sfp&#x2F;sfp+&#x2F;qsfp are just the connector types, and can terminate cables that are made of copper or fiber.  This is a separate issue from what protocol (ethernet&#x2F;infiniband&#x2F;etc) is running over that cable.<p>For an example, take a look at Mellanox&#x27;s cable page which lists a large number of combinations of connectors and cable types.<p>So in general, to call a random sfp cable&#x2F;port an ethernet port would be confusing unless both parties already knew it was passing ethernet traffic.<p><a href="http:&#x2F;&#x2F;www.mellanox.com&#x2F;page&#x2F;cables" rel="nofollow">http:&#x2F;&#x2F;www.mellanox.com&#x2F;page&#x2F;cables</a>