I found Best Robot Actuator (GYEMS: RMD x8)
21:53
Great and Affordable Robotic Actuator (MyActuator RMD X8 and RMD X8 Pro)
14:27
Best Robot Arms of our time
5:50
MIT Cheetah / Hobby King Cheetah Motor Testing
19:01
Building an Internal Cycloidal Robotic Actuator
14:32
Smart Robot Arm does not need programming (Amber Lucid ONE)
15:53
MIT Mini Cheetah Actuator Teardown
22:54
High-torque motors vs. high-ratio gearboxes
11:49