Built-in electrical systems https://3dsky.org/3dmodels/show/vstroennye_elektrosistemy_1 Platform: 3dsMax 2014 + fbx Render: Corona
EVOline BackFlip
A touch opens two outlets and a USB charger.
EVOline Square80
Contains a power outlet, a USB charger, and an RJ45 socket.
SFL Eight BP8-2
Double socket outlet. The rotating, spring-loaded cover opens when pressed. It can also be closed by pressing.