Although the images for this product shows this fairly clearly, but anyways my question: Is this item having the power cord attached on the left side still, or at the back? I noticed that this model has at least two generations already on the market. Link to the offical website that shows the difference (there are even two different packaging exists for the product shown there): https://www.tp-link.com/ch/products/details/cat-5688_UH720.html Thanks!