Custom RJ45 Ethernet Cable Assembly Manufacturer

Yihetai is a professional custom RJ45 / Ethernet cable assembly manufacturer and cable assembly supplier in China, specializing in high-performance network connectivity solutions. As an experienced wire harness manufacturer and custom cable assembly provider, we deliver reliable Ethernet cable assemblies for high-speed data transmission, industrial communication, and networking systems.

Based on customer drawings or samples, we provide fully customized Ethernet cable solutions, including cable category (Cat5e, Cat6, Cat6A, Cat7), shielding type (UTP, FTP, STP), connector types (RJ45 plug, panel mount, waterproof), cable length, overmolding structure, jacket materials (PVC, LSZH, PUR), and color options.

Our custom wiring solutions are widely used in industrial automation, telecommunications, data centers, smart devices, automotive electronics, and IoT applications. Whether you need prototype development or mass production, Yihetai, as a trusted wiring harness factory and OEM wire harness partner, ensures stable quality and fast delivery.

What Is RJ45/Ethernet Cable Assembly?

RJ45/Ethernet cable assembly is a customized cable or wire assembly featuring RJ45 connectors for Ethernet networking, enabling high-speed data transmission up to Gigabit speeds. It meets specific electrical, structural, and installation needs like Cat5e, Cat6, or Cat6a standards with twisted pair wiring for reduced interference.

Compared with standard patch cords, a custom RJ45/Ethernet cable assembly can be designed for specific routing space, connector orientation, environmental resistance, cable flexibility, shielding performance, and assembly requirements. This makes it more suitable for OEM equipment, industrial cabinets, machine wiring, panel installations, and special applications where standard network cables do not fit well.

Common Custom RJ45 / Ethernet Cable Assembly Types We Manufacture

At Yihetai, we can manufacture different types of Ethernet cable assemblies for OEM equipment and system integration projects, including:

Cat5e UTP RJ45 to RJ45 patch cords for basic 1Gbps networking.
Cat6 STP shielded assemblies with foil or braid for EMI protection in industrial settings.
Custom overmolded RJ45 cables for IP67 waterproofing and strain relief.
RJ45 to M12 or other hybrid connectors for automation and robotics.
PoE-enabled Ethernet cable assemblies supporting up to 100W power delivery.
Panel-mount RJ45 cable assemblies for rack systems and enclosures.
Custom lengths with T568A/B wiring standards for data centers.
Multi-pair Ethernet harnesses integrated with power wires.
RJ45 to open end / PCB / IDC custom interface cables
Custom network cable assemblies with special color, label or boot requirements

We can also manufacture custom cable assemblies that combine RJ45 interfaces with USB, DC power, circular connectors, terminal blocks or board-level connections, depending on the electrical and mechanical design of your equipment. For customers who need more than a simple network cable, Yihetai can provide a complete custom wire harness or hybrid cable assembly solution.

Key Features of our RJ45/Ethernet Cable Assembly

Custom lengths from 0.1m to 100m with ±1mm tolerance for precise installations.
Compatible with TE, Amphenol, Molex RJ45 brands and Cat5e to Cat8 ratings.
Multiple gauges (22-26AWG) and insulation like PVC, LSZH, or PE materials.
Stable gigabit Ethernet transmission with low crosstalk and return loss.
High-precision crimping and IDC termination for secure contacts.
Optional foil/braid shielding, waterproof IP67 overmolding available.
Rated for -40°C to +105°C harsh environments and vibration resistance.
100% tested for continuity, hi-pot, and TDR before shipment.

Technical Specifications

Item	Specification
Product Name	Custom RJ45 Ethernet Cable Assembly
Connector Type	RJ45 8P8C male / female, shielded or unshielded
Optional End Types	RJ45 to RJ45, RJ45 to M12, RJ45 to panel mount, custom hybrid ends
Cable Category	Cat5e / Cat6 / Cat6A / custom
Cable Type	UTP / FTP / STP / SFTP / industrial Ethernet cable
Wire Gauge	Typical 22–28 AWG, customized by design
Conductor Material	Bare copper / tinned copper
Jacket Material	PVC / PUR / TPE / LSZH / custom
Shielding	Unshielded / foil shield / braid shield / dual shield
Cable Length	Customized
Color	Black, gray, blue, green, red, yellow, or custom
Temperature Range	Standard or customized according to material selection
Overmolding	Optional
Labeling	Laser mark / label / printing / custom ID
Testing	Continuity test, open/short test, pin assignment check, visual inspection, hi-pot or other tests if required
Packaging	Standard export packing or customized packaging

Applications

Our RJ45/Ethernet cable assembly solutions are widely used in:

Industrial automation systems and PLC communication
Robotics and intelligent manufacturing equipment
Machine vision and control systems
Industrial IoT (IIoT) networking
Control cabinets and panel wiring
Office networking systems and LAN infrastructure

Security systems (IP cameras, NVR, DVR)
Data centers and server connections
Consumer electronics and networking devices
Outdoor communication equipment with waterproof requirements
Medical equipment requiring stable data transmission
Renewable energy systems and monitoring networks
Transportation and railway communication systems

Customization Options

At Yihetai, all RJ45/Ethernet cable assemblies can be customized per your specs. We manufacture based on drawings, samples, BOMs, or application needs as a trusted OEM wire harness partner.

Item	Options	Notes
Wire Type	Twisted pair / Shielded cable	Based on data transmission needs
Conductor	Bare copper / Tinned copper	High conductivity options
Wire Gauge	22–26 AWG	Customizable
Length	0.1m – 100m+	Per drawing
Color	Black / Blue / Custom	Branding available
Connector	RJ45 / Shielded / Waterproof	Multi-brand compatible
Terminal	Standard / Gold-plated contacts	Improved signal stability
Jacket Material	PVC / LSZH / PUR	Environmental compliance
Process	Crimping / Overmolding / Shielding	Industrial-grade processing
Testing	100% electrical test	Optional Fluke certification

We can manufacture based on customer drawings, samples, BOM lists or application requirements.

Send us your drawing, sample or specification for a fast quotation.

Manufacturing Capability

Yihetai has over 23 years of experience in custom cable assembly manufacturing, supported by advanced wire processing equipment, automated crimping machines, injection molding systems, and comprehensive testing facilities.

Our in-house production covers wire extrusion, cutting, crimping, soldering, overmolding, and final assembly, enabling us to control every step of the manufacturing process and ensure consistent product quality.

From material selection to final assembly and testing, all production processes are carried out under strict quality control to ensure stable performance and delivery reliability. Typical lead time for prototypes is 5–7 days, and mass production within 3–4 weeks.

Quality Assurance & Control

Yihetai implements full-process quality control with documented ISO systems, monitoring every step from incoming inspection to final packaging for zero defects in our custom cable assembly output. This ensures every RJ45/Ethernet cable assembly meets or exceeds specs. We hold ISO 9001:2015, UL, and IATF 16949 certifications for automotive-grade reliability in our cable assembly manufacturer operations.

Inspection processes include:

Incoming material inspection for wire and connector compliance
Terminal crimp pull test (min 50N force)
Visual and continuity check per T568 standards
High-voltage test (1000V AC for 60s)
Dimensional and fixture inspection for overmold fit
Return loss and NEXT testing for Cat6+ performance
Every harness is delivered with guaranteed electrical integrity and consistent quality across batches.

Why Choose Yihetai

25+ years of cable and wire harness manufacturing experience in Ethernet solutions.

UL, ISO 9001, and IATF 16949 certified production system.

In-house wire processing, connector crimping, and overmolding capability.

Professional OEM and ODM support for custom wiring solutions.

Strong capability for low-volume prototypes and high-volume runs.

Strong engineering team for custom design, RJ45 matching, and DFM reviews

Frequently Asked Questions

What is the difference between Cat5e and Cat6 RJ45 cable assemblies?

Cat5e supports up to 1Gbps at 100MHz, while Cat6 handles 10Gbps at 250MHz with better shielding to reduce crosstalk ideal for high-speed networks

What can be customized in your RJ45 / Ethernet cable assembly?

We can customize cable category, wire gauge, shielding type, cable length, connector type, connector orientation, overmolding, jacket material, color, label and packaging.

Can you make industrial Ethernet cable assemblies such as M12 to RJ45 or panel-mount RJ45 cables?

Yes. We can support different industrial Ethernet structures, including shielded RJ45 cables, M12 to RJ45 assemblies, panel-mount versions and other application-specific cable combinations.

Do you support both small trial orders and mass production?

Yes. Yihetai supports project development from prototype and sample evaluation to stable volume production, depending on your application and sourcing plan.

What information do you need to quote a custom RJ45 Ethernet cable assembly?

For a faster quotation, please send cable type, connector type on both ends, cable length, pinout or wiring standard, shielding requirement, jacket material, application environment, target quantity and any drawings or photos you have.

Looking for a reliable RJ45 / Ethernet Cable Assembly manufacturer?

Send us your drawing, sample or technical requirements, and our team will provide a customized wire harness or cable assembly solution for your project.