Ethernet Cable Manufacturers
With over 10 years of experience in designing and manufacturing custom Ethernet solutions, JinHai provides high-quality cables for the telecommunications, industrial automation, medical equipment, and electronics industries, ensuring that your networks operate smoothly, securely, and efficiently.

Our Clients
JinHai has always been committed to innovation. With state-of-the-art equipment and rigorous quality control, we provide high-quality solutions for the telecommunications, medical, and electronics industries.
Why Choose JinHai ?
We are committed to a customer-centric approach and provide tailored solutions to meet your specific needs.
Custom Solutions
We offer a wide range of RJ45 connectors and custom solutions that integrate with RJ45, ensuring a perfect fit for your project.
High-Quality Materials
We use high-quality enclosures and offer both shielded and unshielded models to meet the specific requirements of your environment.
Fast Turnaround
For standard cables, we can guarantee shipment within two weeks. For custom cables, shipment will be arranged within three weeks.
Quality Assurance
Our cables undergo Fluke Near-End Crosstalk (NEXT) and return loss testing to ensure reliable high-speed data transmission even in harsh environments.
Our Manufacturing Capabilities
By combining innovation with advanced technology, JinHai not only provides reliable, high-performance solutions but also offers products and components designed for use in specialized environments to meet your specific needs.
Custom Services
We offer a comprehensive range of services to meet the unique requirements of specific environments:
- Custom Ethernet cable assembly design
- Prototype manufacturing
- Shielded (STP/FTP) and unshielded (UTP)
- UV-resistant
- Overmolding or injection molding
Design Process
Based on the 3D drawings you provide, we will stay in close contact with you throughout the process to ensure that the custom wiring harness is compatible with your equipment or electrical system.
Custom Content
We offer a variety of customization options:
• Various connector options, including RJ45, M12, and M8
• Cable length
• Cable color or custom labeling
Security Testing
All products undergo 100% rigorous testing to ensure they meet industry standards and deliver optimal performance in real-world use.
Prototyping
Before moving into mass production, our prototyping service allows you to evaluate and refine your design, as well as conduct practical testing to ensure the product fully meets your expectations.
Ethernet Cable Products
Please take a look at our current selection of Ethernet cables
Standard Ethernet cables (Cat5e, Cat6, Cat6a, etc.)
As the most widely used Category 5e cable, it offers exceptional versatility and provides stable, reliable transmission, making it the top choice for both home and commercial office environments.
Multimode Fiber Optic Cable (MMF)
Fiber optic cables terminated with MPO/MTP connectors featuring MT inserts can accommodate fiber counts ranging from 4 to 144 fibers. They offer high tensile and compressive strength and are specifically designed for data center systems.
This cable assembly features 8.3–10 μm conductors, offering ultra-low signal attenuation and ultra-wide bandwidth. It is the preferred choice for metropolitan area networks, high-performance data centers, and industries such as power, rail, and oil.
Quality and Safety, Guaranteed
Adhering to IPC/WHMA-A-620 standards, we ensure reliability and performance in each product.
Looking for The Best
Custom Wire Harness &
Cable Assembly Service?
Fast Turnaround Time
At JinHai, we ensure that custom wiring harness solutions are tailored to your needs, with quotations delivered within 12 hours to keep your projects on track.
Certified Quality Assurance
Our factory is ISO9001 and IATF16949 certified, guaranteeing the highest standards of quality, reliability, and compliance for all custom wiring harness and cable assembly services.
One-Stop Custom Solutions
We offer a complete, one-stop solution for all your wiring harness needs, from design to manufacturing, ensuring you get exactly what you need for your project.
What Our Customer Say
What types of Ethernet cables do you custom-make?
We offer standard Cat5e, Cat6, Cat6a, and Cat7/8 cables with a choice of shielding options, suitable for commercial, automotive, and industrial applications.
Do your custom Ethernet cables support PoE or high-speed data transmission?
Yes, we support Power over Ethernet (PoE/PoE+), and depending on the type and configuration, data transfer rates can reach up to 10 Gbps.
Are your Ethernet cables suitable for outdoor use or harsh environments?
Of course, we offer rugged, durable cables featuring UV-resistant jackets, waterproof connectors, and overmolding technology to ensure consistent, outstanding performance in harsh environments such as outdoor, industrial, and commercial settings.
What tests do you perform on your Ethernet cables before shipping?
Before shipment, each cable undergoes signal integrity testing, comprehensive continuity testing, impedance testing, and data transmission speed testing.