The grounding screw is located under the bottom lid:
Expansion slots and ports
Integrated two Wireless modules operating at 2.4 GHz and 5 GHz, supporting AP/CPE/P2P/repeater
modes.
Two 10/100/1000 Ethernet ports, supporting automatic cross/straight cable correction (Auto MDI/X).
Either straight or crossover cable can be used for connecting to other network devices.
Configuration
We recommend clicking the "Check for updates" button and updating your RouterOS software to the
latest version to ensure the best performance and stability.
Internet connection configuration https://mt.lv/configuration;
Upgrade options for the RouterOS software https://mt.lv/upgrade;
RouterOS includes many configuration options in addition to what is described in this document. We
suggest visiting the RouterOS documentation page to get yourself accustomed to the