This is Unitree's tendon-driven dexterous hand, the Dex2/5, made for the G1 and R1 humanoids. Its five fingers carry ten joints, but only two are actuated: one moves the thumb and one moves the index, middle, ring and little fingers together, through a gear-tendon rope drive with the wiring routed inside the hand.
That design is what sets it apart from Unitree's other hands. The Dex3-1 gives the G1 three force-controlled fingers, and the Dex5-S drives each of its 22 joints individually. The Dex2/5 gives up individual finger control for a simple, light hand: 365 g, 151 × 70 × 63 mm when flat, closing into a fist in 0.5 s and gripping objects down to 8 mm across.
It is built to take knocks. Unitree states that the complete hand has passed more than 100,000 fatigue cycles and over 100 drop tests. Fingertip force is 15 N at the thumb and 15 N shared across the four fingers, and with the palm down or turned left it holds up to 1.5 kg when grasping a 5 cm round hard object.
It runs from 24–60 V and communicates over RS-485 at 1,000 Hz, reporting joint mode, position, velocity, torque, temperature, voltage and current, and accepting position, velocity, torque, stiffness and damping commands. Whether you receive a left or right hand, or a pair, and the mounting for your robot are confirmed with your quotation.
Key Capabilities
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Two Actuators, Ten Joints: One actuator moves the thumb and one moves the four fingers together, which keeps control simple.
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Gear-Tendon Rope Drive: Tendons carry the motion to the finger joints, with the wiring routed inside the hand.
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365 g Five-Finger Hand: It measures 151 × 70 × 63 mm when flat, light enough for a compact humanoid's wrist.
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Tested for Durability: The complete hand has passed more than 100,000 fatigue cycles and over 100 drop tests.
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Holds Up to 1.5 kg: Grasping a 5 cm round hard object with the palm down or turned left, it holds up to 1.5 kg.
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RS-485 at 1,000 Hz: It reports position, velocity, torque, temperature, voltage and current, and accepts stiffness and damping commands.
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Made for the G1 and R1: Unitree designs it for its G1 and R1 humanoids, with hand side and mounting confirmed at quote.
Buying through Robotix Market
This unit is sourced new through established distribution channels and ships worldwide with the full manufacturer warranty. Technical support is coordinated with the manufacturer's own service network. Deployment scope, configuration, and commissioning responsibilities are agreed as part of the quotation — on-site installation is not included in the product price.
