> For the complete documentation index, see [llms.txt](https://ezr23t.router.works/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ezr23t.router.works/sim-card-and-power.md).

# SIM Card & Power

- [Choose Location](https://ezr23t.router.works/sim-card-and-power/choose-location.md): Good mobile signal quality is fundamental to getting a stable and fast internet connection over the mobile network. Please choose a location for the 4G router that has a good signal reception.
- [Install Antennas](https://ezr23t.router.works/sim-card-and-power/install-antennas.md): The 4G router uses 2x2 MIMO antennas on both mobile and Wi-Fi connections.
- [Insert A SIM Card](https://ezr23t.router.works/sim-card-and-power/insert-a-sim-card.md): The 4G router uses Nano (4FF) SIM card to connect to mobile internet networks.
- [Power Supplies](https://ezr23t.router.works/sim-card-and-power/power-supplies.md): The 4G router uses a 12Volt DC power adapter. Please use the correct voltage and current if using other power sources.