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Custom Connector Manufacturer & Solution Provider from China

Founded in 2003, GLGNET has grown to become a leader in the manufacturing of high-performance RJ45 connectors and SFP cages.

With over 1,700 employees and manufacturing facilities in China and Vietnam, GLGNET provides large-scale manufacturing and engineering support for global customers.

Explore Our Range of RJ45 Jacks and SFP Cages

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Magnetic RJ45 (ICM)
Our magnetic RJ45 connectors (ICM) support data rate up to 10G and PoE up to 150W, designed for compatibility with a wide range of PHY chips. They are fully compliant with IEEE802.3 standards and compatible with a variety of network devices, making them ideal for high-traffic and PoE applications.
Discover Magnetic RJ45 Connectors
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Standard RJ45 Connectors
Our standard RJ45 connectors provide robust and reliable connections. Available in DIP and SMT mounting options, they are perfect for LAN applications, home networking, and office connectivity.
Explore Standard RJ45 Connectors
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SFP/QSFP Connectors
Our SFP and QSFP connectors support data rate from 1G to 800G, offering custom configurations and advanced features such as heat sinks and light pipes. Perfect for high-speed data transfer in data centers and enterprise networks.
Explore SFP Cage & Connector
RJ45 Modular Jack and SFP+ Cage

Exclusive Features of GLGNET RJ45 Modular Jack and SFP+ Cage

RJ45 Modular Jack and SFP+ Cage
High Data Rate
Our high-speed connector solutions support higher interface bandwidth, greater port density and scalable system designs for data center, networking and telecom equipment.
Learn More RJ45 Modular Jack and SFP+ Cage
RJ45 Modular Jack and SFP+ Cage
Power over Ethernet (PoE)
Our magnetic RJ45 connectors support PoE up to 150W, simplifying infrastructure, reducing costs, and expanding deployment options with fewer cables and easier device installations.
Learn More RJ45 Modular Jack and SFP+ Cage
RJ45 Modular Jack and SFP+ Cage
Compliance and Compatibility
Our products meet IEEE802.3 standards, ensuring industry compliance, broad device compatibility, and reliable performance for seamless integration and consistent network operations.
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Find the Right Connectors for Your Needs

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Networking
Our connectors are essential in networking environments, ensuring high-speed data transfer and reliable connectivity for data centers, enterprise networks, and telecommunication systems.
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Data Center & Artificial Intelligence
Our advanced connectors support AI data centers, delivering high-speed, low-latency connections essential for AI processing and large-scale data analysis.
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Security
Our products play a crucial role in security systems, providing stable and secure connections for surveillance cameras, access control systems, and other security devices.
Custom Connector Solution

Need Help Choosing the Right RJ45 or SFP Cage?

Share your data rate, PoE, shielding, port layout, or custom requirements. Our engineering team will help you find the right connector solution.

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21+ Years Experience · 200+ Engineers · Custom Connector Solutions
RJ45 · SFP · SFP+ · QSFPEngineering Support Available

Why GLGNET?

23
Years of Experience
105,000+m2
Manufacturing Space
200+
Engineers
520,000,000
RJ45 Ports Monthly Capacity
01
Proven Track Record
Established in 2003, GLGNET has over 1,700 employees and 105,000+ square meters of factory space, delivering top-tier connectivity solutions globally.
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02
Innovative Engineering
With 200+ engineers and 101 patents, including 22 innovation patents, our team drives cutting-edge network connectivity technology.
GLGNET connector engineering and R&D team.webp
03
Comprehensive Quality Control
Certified with ISO9001, ISO14001, ISO45001, ISO14064，QC080000, and UL, our products undergo rigorous testing to ensure top quality.
GLGNET connector quality control and testing.webp

Testimonials

From Our Valued Customers Worldwide
GLGNET
Li Wei
We were looking for a 10G magnetic RJ45 connector with shielding and LED options for a compact network device. GLGNET helped us compare several 1x1 RJ45 options based on PCB space, port height, EMI shielding, and soldering process. The recommended connector fit our board layout without major mechanical changes.
GLGNET
Marcus Johnson
Our industrial Ethernet project required a multi-port RJ45 jack with stable mechanical strength and consistent pin alignment for batch assembly. GLGNET provided a 1x4 RJ45 connector option with shielding and LED configuration, which helped simplify our sourcing and keep the connector structure consistent across different product versions.
GLGNET
Daniel Turner
For our PoE security equipment, we needed an RJ45 connector that could support power transmission, stable signal performance, and reliable contact quality. GLGNET helped us select a magnetic RJ45 solution suitable for PoE applications and provided technical details for our internal evaluation.

Successful Cases

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Frequently Asked Questions

FAQ

Find answers to common questions about RJ45 connectors, SFP cages, customization and connector selection.

Can GLGNET support custom RJ45 connector and SFP cage designs?

Yes. GLGNET provides custom connector solutions based on your data rate, PoE requirement, shielding structure, port layout, mounting type, LED option, and mechanical design needs. Our engineering team can help match or develop a suitable RJ45 connector, magnetic RJ45, SFP, SFP+, SFP28, or QSFP solution for your project.

How do I request a quote for RJ45 connectors or SFP cages?

You can send us your product type, data rate, application, mounting method, pin requirement, shielding requirement, drawing, or reference part number. Our team will review your requirements and recommend a suitable connector solution for quotation.

Does GLGNET provide engineering support for connector selection?

Yes. GLGNET offers engineering support to help customers choose the right connector based on application, PCB design, PoE level, EMI performance, port configuration, and production requirements. This is especially useful for OEM, network equipment, security, and data center projects.

Are GLGNET connectors suitable for PoE and high-speed applications?

Yes. GLGNET magnetic RJ45 connectors support data rates up to 10G and PoE up to 150W, while SFP/QSFP connector solutions support high-speed applications from 1G to 800G depending on the product series.

Why choose GLGNET as an RJ45 connector manufacturer?

GLGNET has over 21 years of industry experience, 1,700+ employees, 200+ engineers, large-scale manufacturing capacity, and custom connector solution capabilities. The company also highlights 520 million RJ45 ports monthly capacity on the homepage, which supports bulk and long-term supply needs.

SFP Cage & Connector Overview

The SFP cage is a critical component used to house Small Form-factor Pluggable (SFP) transceivers, which are essential for high-speed data communication in networking equipment. Understanding the key considerations when selecting an SFP cage ensures optimal performance and compatibility.

SFP Connector vs. SFP+ Connector

When choosing between an SFP connector and an SFP+ connector, it's important to understand their differences. An SFP connector is designed for standard SFP transceivers, supporting data rates up to 4.25 Gbps. In contrast, an SFP+ connector is engineered for SFP+ transceivers, supporting higher data rate up to 10 Gbps. This distinction makes SFP+ connector more suitable for applications requiring higher bandwidth and faster data transfer.

SFP Cage vs. SFP+ Cage

An SFP+ cage supports higher data transfer rate and requires superior EMI performance. To achieve this, we design the EMI spring separately from the SFP+ cage body and solder them together for enhanced EMI performance. In contrast, an SFP cage integrates the EMI spring and cage body into a one-piece design, which is more cost-effective but may result in performance degradation.

Selecting Reliable SFP Manufacturers

Choosing reputable SFP manufacturers is crucial for ensuring product quality and reliability. Manufacturers like GLGNET provide high-quality SFP cages and connectors, backed by extensive testing and certification. Our commitment to innovation and quality makes us a preferred choice in the industry.

Understanding SFP Cage & Connector Types

SFP cage connectors are available in ganged and stacked configurations to meet different application needs:
Ganged SFP Cage and Connector: Consisting of two separate components – the cage and the connector, the cage is typically packaged as press-fit or DIP, while the connector uses SMT packaging. This separation allows for flexibility in assembly and design.
Stacked SFP Cage (or SFP Connector, SFP Cage Connector): In this configuration, the cage and connector are integrated into one component and are only available in press-fit packaging. This integrated design simplifies installation and provides a compact solution.
Both ganged and stacked SFP cages can be equipped with heat sinks for enhanced thermal management and light pipes to indicate the operational status of the corresponding ports.

SFP Cage Dimensions and Pinout

Accurate SFP cage dimensions and pinout are crucial for ensuring compatibility and performance. Industry standards for SFP cage dimensions typically include:
Cage Width: Approximately 14.25 mm
Cage Height: Around 9.80 mm for ganged configuration and up to 14.50 mm for stacked configuration
Cage Length: Typically 28.60 mm
The pinout configuration generally follows the SFF-8431 specification, which includes 20 pins arranged in a standardized layout to ensure interoperability between different manufacturers'components.
Customization Options
While adhering to these industry standards is essential for interoperability, GLGNET also offers customization options to meet specific requirements. Whether you need alterations in dimensions, pin configurations, or additional features like enhanced EMI shielding or heat dissipation solutions, we can tailor our SFP cages to your exact specifications.

Ready to Enhance Your Network?

Thank you for your interest in our products. Whether you have specific technical questions, need a custom solution, or just want to understand how our products can fit into your project, we're here to help.
Let's connect and find the best way to enhance your network infrastructure.
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