The Xiaomi 5G CPE Pro could be a good option for your needs, especially if you live in an area with poor broadband connection.

### Powerful Wi-Fi router for SIM cards
- The Xiaomi 5G CPE Pro supports 5G SA/NSA and 4G LTE and can convert 4G/5G signals into Wi-Fi signals, which is ideal for areas without broadband connection.

### Range and performance
- The router features Wi-Fi 6 technology, which can achieve a theoretical maximum speed of up to 5378 Mbps. This is particularly useful for demanding applications such as downloading large files or streaming 4K videos.
- The OFDMA and MU-MIMO technologies enable simultaneous data transmission to up to 16 devices with low latency, ensuring smooth use of multiple devices at the same time.

### Home office requirements
- The router offers a stable and fast Internet connection that is particularly suitable for the home office. The 160MHz bandwidth and support for IEEE 802.11ax ensure high speed and low latency, which is essential for online conferencing, cloud applications and other work-related tasks.

### Additional functions
- The router features flue-style heat dissipation, which ensures efficient cooling, and also offers NFC support for easy connections with Android devices.
- It supports mesh networking with up to 10 Xiaomi Wi-Fi 6 routers, providing comprehensive coverage of your home.

Overall, the Xiaomi 5G CPE Pro provides the necessary performance and stability you need for your home office, especially in areas with poor broadband connection.