Is there a name for this poset?

Question

Is there a well-known name for the poset defined on $\mathbb{R}^2$ under the comparison operator $(x_1, y_1) ≤ (x_2, y_2)$ iff $x_1 ≤ x_2$ and $y_1 ≤ y_2$?

Answer 1

This order is sometimes called product order.