Any (reliable) system you use is using CAN: medical devices, elevators, airplanes, robots, drohnes … Google is using it internally for their servers. Many rack

Any (reliable) system you use is using CAN: medical devices, elevators, airplanes, robots, drohnes … Google is using it internally for their servers. Many rack providers have implemented it for server rack monitoring, … CAN is cheap. You get it in almost every micro-controller. Requires less overhead in micro-controllers than Ethernet. Is much more reliable than Ethernet if you leave controlled room conditions. It is mostly cheaper if you have to factor in all-over costs like cabling, switches, management. It is everywhere where you don't see it, where you just care that the system needs to work with less management as possible.