The BrainCo Revo 3 U21 for H2 EDU is a robotic hand with 21 active degrees of freedom, all fully direct-drive and back-drivable. Each of the four fingers has 4 degrees of freedom, while the thumb has 5. The hand delivers an active grip force of 70 N and a maximum fingertip pinch force of 20 N.
This version has no tactile sensing. All five fingers can touch the palm, with a grasping diameter range of 10–150 mm. A wrist-mounted RGB camera with 1920 × 1080-pixel resolution, a dedicated camera bracket, cables and other accessories are included.
The BrainCo Revo 3 U21 combines 21 active degrees of freedom with fully direct-drive, back-drivable joints. Designed for H2 EDU, it measures 215 × 105 × 50 mm and provides motion repeatability of 0.1°. The joint opening and closing frequency is 3 Hz.
The specified payload is 20 kg for the whole hand and 5 kg for the four fingers. All five fingers can reach the palm, supporting grasping diameters from 10 to 150 mm. The hand operates on 12–80 V and comes with a wrist-mounted RGB camera, dedicated mounting bracket, cables and other accessories.
