Humanoid, quadruped and other embodied intelligent robots integrate an extensive range of internal links, covering main control communication, vision capture, joint control, end-effector sensing, bus feedback and hybrid wiring. Different installation positions impose differentiated requirements on cables with respect to transmission performance, impedance precision, EMI shielding capacity, compact small-OD routing, dynamic flex endurance and pre-assembled delivery capability.

To satisfy the connectivity demands of embodied intelligent robots from prototype verification to large-scale mass production, Zhaolong Interconnect delivers customized cables and cable assemblies adaptable to various structural layouts and dynamic operating conditions. Our product portfolio covers five core categories of typical links: high-flex ultra-fine Ethernet, high-speed vision transmission, high-dynamic control signal, miniaturized end-effector signal and high-flex hybrid interconnect solutions.

1. High-Flex Ultra-Fine Ethernet Connection

High-flex ultra-fine Ethernet cables are mainly deployed for data communication between main control units, I/O modules, joint controllers and sensor units, ideal for robotic scenarios featuring confined internal space, complex routing paths or frequent flexing motions.

Zhaolong CAT6A 4 Pairs × 2 Conductors, 32 AWG TPU Cable

Zhaolong supplies high-flex ultra-fine Ethernet cable assemblies including CAT5e 4 Pairs, 30 AWG TPU and CAT6A 4 Pairs × 2 Conductors, 32 AWG TPU. The CAT5e variant fulfills gigabit data communication requirements, while the CAT6A solution supports higher-bandwidth data links and local backbone communication. Adopting an ultra-fine structural design, one of our CAT5e cables achieves a minimum outer diameter down to 2.2 mm, striking an optimal balance between flexibility, abrasion resistance and compact-space routing.

Zhaolong Category 6A High-Flex Ultra-Fine Ethernet Cable Assembly

For continuously moving sections inside robots, these cables pass dynamic endurance validation of 5 million flex and torsion cycles. We can also provide custom-length pre-terminated cables, connector-terminated assemblies, miniaturized molded components and complete wiring harnesses in line with customers’ mechanical designs, greatly reducing subsequent assembly and verification workloads.

Representative Products:

• CAT5e 4 Pairs, 30 AWG TPU Cable Assembly

• CAT6A 4 Pairs × 2 Conductors, 32 AWG TPU Cable Assembly

2. High-Speed Vision Transmission Connection

High-speed vision transmission cables are designed for head-mounted cameras, robotic arm cameras, vision modules and multi-sensor vision links, meeting the demands of high-rate data transmission, space-saving routing and reliable connection on moving components.

Zhaolong USB3.0 Type-C Cable Assembly

Zhaolong offers a comprehensive suite of vision and sensor data transmission solutions, including USB3.0 cable assemblies, GMSL2 coaxial assemblies and high-flex Single-Pair Ethernet (SPE) cables, which serve typical applications such as robot vision acquisition, image backhaul and lightweight sensor interconnection. Our GMSL2 coaxial assemblies adopt a 26 AWG 50 Ω coaxial structure, compatible with FAKRA, SMA and other connector types on demand. Featuring lightweight construction and streamlined routing, SPE cables are well-suited for data connection of miniature sensors and distributed perception units.

Zhaolong GMSL2 Coaxial Connection Assembly

Optimized with TPU abrasion-resistant jackets and high-flex structures, these cables fit dynamic routing paths involving bending, swinging and twisting for vision modules mounted on robot heads, joints and manipulators. The entire product range withstands 5 million flex cycles, while coaxial assemblies are qualified for 5 million bending cycles plus an additional 5 million torsion cycles. Upon request, all assemblies can undergo rigorous tests including insertion loss, return loss, shielding effectiveness and dynamic durability to guarantee stable high-speed signal transmission under continuous motion.

Zhaolong High-Flex Single-Pair Ethernet (SPE) Cable

Representative Products:

• USB3.0 Vision Transmission Cable Assembly

• GMSL2 Coaxial Connection Assembly

• High-Flex Single-Pair Ethernet (SPE) Cable

3. High-Dynamic Signal Connection

High-dynamic signal cables are used to transmit control and feedback signals on robotic arms, legs, joint moving segments and routes subject to frequent bending and twisting. These areas experience long-term swinging, rotation and stretching, which set strict standards for cable flexibility, impedance stability and temperature resistance.

Zhaolong twisted-pair data cables are engineered for high-dynamic control and feedback links with tightly controlled differential impedance of 100±15 Ω, minimizing signal fluctuation risks during mechanical movement and adapting to various differential signal transmission scenarios. Rated for over 5 million torsion cycles, they are perfectly applicable to robot joints, manipulators, legs and other positions with frequent cyclic motion.

For wiring close to motors, drive units and other heat-generating components, cables adopt FEP high-temperature insulation construction with a maximum continuous operating temperature of 200°C, satisfying signal connection requirements in high-temperature environments.

Zhaolong ROBOTIC FD UTP 1 Pair, 26 AWG Twisted-Pair Data Cable

Representative Product:

• 1 Pair, 26 AWG Twisted-Pair Data Cable

4. Miniaturized Signal Connection

Miniaturized signal interconnects are mainly applied to internal wiring of dexterous hands, end effectors, miniature sensors and compact modules. Such locations feature extremely limited installation space that requires multi-channel signal transmission within tiny structures, imposing stringent requirements on cable outer diameter, weight, impedance accuracy and material stability.

Our micro-coaxial cable series covers ultra-fine wire gauges ranging from 39 AWG to 46 AWG, with the minimum outer diameter reaching 0.20 mm. The ultra-thin design effectively cuts down space occupation and structural load for end-effector wiring, enabling higher integration flexibility for dexterous hands and miniature sensors.

Zhaolong 46 AWG Micro-Coaxial Cable for Dexterous Hands

Built with precision micro-coaxial structures and controlled impedance of 45±5 Ω, these cables are ideal for miniature signal transmission on end effectors. Equipped with PFA insulation, they deliver outstanding temperature resistance and anti-aging performance while supporting miniaturized layout, providing lightweight, space-efficient connectivity solutions for dexterous grippers and end actuators.

Representative Product:

• 46 AWG Micro-Coaxial Cable

5. High-Flex Hybrid Connection

High-flex hybrid cables are widely adopted for leg joints of quadruped robots, moving torso sections of humanoid robots, body interconnections and complex dynamic routing paths. They integrate power, control, feedback and bus signals into one single cable bundle, eliminating excessive space occupation and assembly complexity caused by discrete multiple wires.

Zhaolong integrated power & bus wiring harnesses can be fully customized according to mechanical space layout, power ratings, signal pair quantities, bus protocols and termination styles. By consolidating power cores, bus lines and control feedback circuits into an integrated design, our harnesses avoid risks such as cable crossing, tangling and assembly interference.

Zhaolong Power & Bus Integrated High-Flex Cable

Fitted with wear-resistant TPU jackets, these hybrid harnesses endure friction, dragging and continuous cyclic movement on robot legs and torsos, validated for 5 million flex cycles with a continuous operating temperature rating up to 125°C. Benefiting from composite structural design and pre-assembled delivery, our solutions help customers streamline internal wiring layouts, enhance assembly repeatability and secure long-term connection reliability under cyclic dynamic operating conditions.

Representative Product:

• Power & Bus Integrated Wiring Harness