> For the complete documentation index, see [llms.txt](https://nxp.gitbook.io/elmandadero/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nxp.gitbook.io/elmandadero/guides/elm4-electronics-guides/systems-power-supply.md).

# System's power supply

### What is a Fuse Box ?

### How to calculate fuse size

### How to calculate cable size