Yes, MikroTik offers several devices that can connect to the Internet using a SIM card with a data plan, allowing data transfers without the need for a wired connection.

These devices are part of MikroTik's line of products with LTE (Long-Term Evolution) capabilities, designed specifically for mobile networks.

Below we describe some popular models:

1. MikroTik LtAP mini LTE kit:
   • This is a small wireless access point with an integrated LTE modem that supports 2G, 3G, and LTE (FDD and TDD) connectivity. Includes a SIM card slot for connection to the mobile network. Additionally, it has three Ethernet ports and a built-in wireless access point to distribute the Internet connection to additional devices.
2. MikroTik wAP LTE kit:
   • The wAP LTE is a weatherproof wireless access point with an integrated LTE modem. It comes with a SIM card slot and is ideal for locations without a broadband connection or for temporary use at event sites, construction sites or even in vehicles. This device also supports 2G and 3G connectivity.
3. MikroTik SXT LTE kit:
   • The SXT LTE is an outdoor device that integrates an LTE modem and a high-gain antenna, making it ideal for rural areas or regions where cable connections are not viable. It also supports different LTE bands for international use.
4. MikroTik LHG LTE kit:
   • The LHG LTE is another outdoor device with a grid antenna design that provides long-range coverage. It is perfect for establishing Internet connections in very remote areas where other broadband solutions are expensive or impossible to implement.

All of these devices require an active SIM card with an appropriate data plan from a mobile service provider.

They are ideal for solutions where wiring is impractical or impossible, and are widely used in temporary installations, vehicles, remote sites, or in applications where mobility is needed.

More information on the manufacturer's page: https://mikrotik.com/products/group/lte-products