MBC Servo6 6-Port Servo Expander (for LEGO® SPIKE™) × SPIKE Prime / Robot Inventor
Using the MBC Servo6 6-Port Servo Expander (for LEGO® SPIKE™) with SPIKE Prime / Robot Inventor: check the edition and the wiring, then pick your software; its page covers that software only.

Which edition
Plug the Servo6 into any SPIKE Prime port and connect servos to its ports 1~6. The servos are powered by the hub through the Servo6; no separate battery is needed.
② Pick your software
Official LEGO AppWhat most schools use; no firmware change, read with the colour-sensor blocks
PybricksType Python: fastest and most complete; the pick of competition teamsInteractive tutorialSPIKE
No hub needed: click through it in your browser. Pick a function on the left, watch the code or blocks build up on the right, and drag the simulated sensor to see the values.