Unitree H2 EDU-BrainCo Revo 3 U21 Dexterous Hand with RGB (NO TACTILE)— Single Unit (Left or Right)

Humanoid robots tend to be photographed for their legs, yet most of the work a laboratory buys them for happens at the ends of their arms. On the Unitree H2 EDU, that end of the arm can be the Unitree H2 EDU-BrainCo Revo 3 U21 Dexterous Hand with RGB (NO TACTILE)— Single Unit (Left or Right): a high-end direct-drive hand with 21 degrees of freedom, ordered one side at a time and specified without tactile feedback. It suits teams whose manipulation work relies on articulation and vision rather than on touch, and who would rather order precisely the side they need than a matched pair they do not.

Robots Middle East supplies the Revo 3 U21 single unit to universities, research institutes and system integrators across the Middle East. Our team prepares the quotation, establishes with you whether the left or the right hand fits your H2 EDU programme, and arranges delivery and after-sales support through a single point of contact, so that the hand reaches your laboratory ready to be integrated rather than waiting on unanswered questions.

Background

Unitree Robotics and BrainCo

Unitree Robotics built its reputation on agile legged robots and has since extended that engineering into full-size humanoids, with the H2 family as its current platform in this class. Rather than develop every end effector in-house, Unitree offers the H2 EDU with a choice of dexterous hands from specialist makers. BrainCo is one of them: a company known for its work on bionic hands and neurotechnology, whose Revo 3 series brings that experience of human-like hand design to research humanoids. The pairing places a dedicated hand specialist at the wrist of a humanoid designed by a dedicated locomotion specialist.

Where the U21 sits in the Revo 3 range

The Revo 3 line for the H2 is named in three versions: the U21, the U21T and the U21VT. The U21 described on this page is the variant without tactile feedback; the suffixed versions add sensing to the same hand family, as their names indicate. The H2 EDU itself follows a research-oriented logic, offering secondary development, several dexterous hand options and an Intel Core i7 for custom development. Within that offer, the Revo 3 U21 is one of the selectable hands, and in the H2 EDU SMART J configuration the robot is fitted with two BrainCo Revo 3 U21 hands, each with a wrist-mounted RGB camera. This listing supplies a single hand, left or right, for laboratories that need one side rather than the complete pair.

Technical Specifications

Specifications are as published by the manufacturer and are confirmed against the datasheet at quotation.

The manufacturer has not published the weight, the dimensions, the grip force, the supply voltage, the communication interface, the payload, the IP rating, the connector type or the contents of the left and right packs; each of these is confirmed at quotation.

What makes the Revo 3 U21 different from the U21T and U21VT?

The three Revo 3 versions share a family name, but they answer different research questions. The U21 combines 21 degrees of freedom per hand with a high-end direct-drive design and deliberately omits tactile feedback. For a great deal of manipulation work, that is not a limitation but a clarification: grasp planning, finger-gait studies, teleoperation, imitation learning from demonstration and vision-based control can all be pursued with an articulated hand and a good view of the object, without signals from the fingertips.

The U21T and U21VT exist for the experiments in which contact itself is the subject. Where a project must measure how firmly an object is held, detect slip, or learn policies that fuse touch with sight, a tactile or visuo-tactile hand is the appropriate tool. Choosing the U21 therefore means choosing a hand whose sensing load is lighter and whose data streams are simpler to manage, which can make it easier to set up, to teach with and to integrate into an existing perception pipeline. The decision is less about which hand is better and more about which variables a laboratory actually intends to study.

The camera matters here as well. The product name carries the RGB designation, and in the SMART J configuration the U21 hands are paired with wrist-mounted RGB cameras. A camera at the wrist gives the control system a close, moving viewpoint of the grasp, which is precisely the information a hand without touch sensing relies upon.

Why order a single hand rather than a pair?

A humanoid is bought as a system, but it is maintained, extended and reconfigured one component at a time. A single-unit listing serves those moments. A laboratory may wish to keep a spare for the side that sees the heaviest use, replace one hand while the other remains in service, or complete a robot that was originally configured with a different hand on one side. Some research groups also run asymmetric set-ups on purpose, pairing a dexterous hand on the working side with a simpler end effector on the other, so that budget and attention are concentrated where the experiment takes place.

Ordering by side also keeps procurement precise. Because left and right hands are mirror images, the side is the first detail Robots Middle East agrees with you when preparing your quotation, together with the H2 EDU configuration the hand will join.

Who is the Revo 3 U21 for?

The primary buyers are university laboratories and research institutes already working with, or planning to acquire, the Unitree H2 EDU. For these groups, the U21 provides a highly articulated hand for manipulation research driven by motion and vision, along with a convenient route to spares and side-specific replacements. Teaching programmes in robotics, mechatronics and artificial intelligence form a second segment: a hand without tactile sensing keeps exercises focused on kinematics, control and computer vision, which is often the right scope for advanced coursework.

System integrators and corporate innovation teams evaluating humanoids for future service or industrial roles are a third audience, using the hand to prototype grasping behaviours before committing to a larger fleet. Teams whose work depends on contact information should look at the sensing variants instead: the Unitree H2-BrainCo Revo 3 U21T Tactile Dexterous Hand with RGB for touch, or the Unitree H2-BrainCo Revo 3 U21V Visuo-Tactile Dexterous Hand for combined visual and tactile sensing. Those surveying the wider platform can begin with the Unitree H2 category.

What is the Revo 3 U21 used for?

1. Grasp planning research — testing how a highly articulated hand approaches, shapes around and secures objects of different forms.
2. Vision-based manipulation — developing control that relies on a close camera viewpoint of the grasp rather than on fingertip sensing.
3. Teleoperation and data collection — capturing human demonstrations through the hand to build datasets for robot learning.
4. Imitation and reinforcement learning — training dexterous policies on a humanoid platform designed for secondary development.
5. Teaching and coursework — giving students practical experience of hand kinematics, control and perception on a real humanoid.
6. Spares and reconfiguration — replacing or adding one side of an H2 EDU without ordering a full pair.

Pricing and Availability

Robots Middle East supplies the Revo 3 U21 single unit by quotation, so that the hand side, the H2 EDU configuration it will join and the contents of the pack are agreed before anything is ordered. Delivery, customs clearance and technical support are arranged together with your quotation. To begin, state whether you need the left or the right hand and describe the robot it will be fitted to, using the quotation request available on this page.

Frequently Asked Questions

How many degrees of freedom does the Revo 3 U21 have?

The Revo 3 U21 has 21 degrees of freedom per hand.

Does the U21 have tactile sensing?

No. The U21 is the version without tactile feedback. The U21T and U21VT are the Revo 3 versions that add sensing.

Is this listing for one hand or a pair?

This listing is for a single unit, either left or right. You specify the side when requesting your quotation.

Which robot is the hand intended for?

The Revo 3 U21 is one of the dexterous hand options offered for the Unitree H2 EDU. In the H2 EDU SMART J configuration, the robot carries two U21 hands with wrist-mounted RGB cameras.

What kind of drive does the Revo 3 U21 use?

The Revo 3 U21 is a high-end direct-drive hand. This design is paired with 21 degrees of freedom per hand.

Can I fit a single U21 to an H2 EDU that is already in use?

Yes, the single-unit listing is intended for spares, replacements and the reconfiguration of one side. Tell Robots Middle East which side you need and how your robot is configured, and the quotation is prepared accordingly.

Where can I buy the Unitree H2 EDU-BrainCo Revo 3 U21 Dexterous Hand and what does it cost?

You can buy it from Robots Middle East, which supplies it across the Middle East. The cost depends on the side and configuration you require and is set out in a personal quotation requested from this page.

Summary

A humanoid earns its place in the laboratory through what its hands can do, and the Revo 3 U21 gives the H2 EDU a highly articulated, direct-drive hand with 21 degrees of freedom, specified without tactile feedback and supplied one side at a time. It suits manipulation research driven by motion and vision, teaching programmes that keep the focus on control, and teams that need a spare or a side-specific replacement. Where touch becomes the subject of study, the U21T and U21VT take over. For a quotation from Robots Middle East covering the side, configuration, delivery and support, this page is the starting point.