Review on TESSAN 12 Outlet Surge Protector Power Strip with 3 USB Ports, 6ft Extension Cord, Overload Protection, Wall Mountable - Grey by Peris Holland

I don't know why the REVIEWER titled 'Unknown' (November 2020) claims that you cannot mount this strip vertically because the mounting holes are backwards. And others who say you can't put two warts next to each other. I'm not sure if these reviewers are from other manufacturers or if the manufacturer changed something, but you can DEFINITELY mount it vertically with the cable at the bottom and the USB ports at the top (see photo). You can also use two bricks mount next to each other, BUT not two very large ones. One large and one medium size is best. This is a very good extension.