Dorelink Dorelink

Custom OEM Compact SFP Connector Factories

Leading the Future of High-Density Optical Interconnects with Precision Engineering and Global Supply Chain Excellence.

Defining Excellence in Compact SFP Connector Manufacturing

In the rapidly evolving landscape of telecommunications, the demand for higher port density and lower power consumption has birthed the Compact SFP (CSFP) standard. As a premier Compact SFP Connector Factory, Dorelink Optical Communications understands that the "compact" designation is more than just a size reduction—it represents a fundamental shift in network architecture. By integrating two independent bidirectional channels into a single SFP-sized footprint, CSFP technology allows network operators to double their capacity without expanding physical rack space.

Our role as a leading Custom OEM partner involves bridging the gap between standard Multi-Source Agreement (MSA) specifications and the unique requirements of modern data centers. From EMI shielding optimization to advanced thermal management, our factory is equipped to handle the rigorous demands of next-generation 5G fronthaul and FTTH infrastructure.

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Signal Integrity

Utilizing advanced signal integrity analysis, we ensure our connectors maintain 10G and 25G performance across varying temperatures and distances.

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EMI/EMC Compliance

Our SFP cages feature integrated grounding tabs and EMI fingers to suppress electromagnetic interference in high-density switch environments.

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OEM Customization

From custom firmware for vendor compatibility to specific PCB tail lengths, we provide end-to-end ODM/OEM services tailored to your hardware.

18,500 Production Area (㎡)
120+ R&D Engineers
850+ Supply Chain Partners
$18M Annual Export Value

The Strategic Advantage of China's Optical Supply Chain

Operating out of China's high-tech manufacturing hubs, Dorelink leverages a robust ecosystem that provides unparalleled speed-to-market. The synergy between local raw material suppliers, automated assembly specialists, and logistics giants allows us to offer competitive pricing without sacrificing the E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) that global enterprises demand.

Cost Efficiency: Vertical integration allows us to manage costs from the initial die-casting of SFP cages to the final assembly of optical modules.
Scalability: With 18,500㎡ of floor space, we can scale from small-batch prototypes to massive volume orders for global telecom rollouts.
Tech Cluster: Proximity to world-class testing labs and component manufacturers ensures we stay at the cutting edge of IEEE and MSA standards.

Localization Support & Global Compliance

Regional Certifications

Our products adhere to international standards including CE, FCC, RoHS, and REACH. We provide comprehensive documentation to facilitate smooth entry into North American, European, and Asian markets.

TAA & Trade Compliance

We assist clients in navigating complex trade regulations, offering transparent origin tracing and compliance certificates necessary for government and enterprise-level contracts.

On-the-Ground Support

With 7 years of export experience, we offer localized technical support and bridge the time-zone gap with a dedicated international account management team.

About Dorelink Optical Communications Co., Ltd.

Established in 2016, Dorelink Optical Communications Co., Ltd. has rapidly ascended as a specialized force in the R&D and manufacturing of high-performance optical transceiver products. Our facility is a testament to modern industrial excellence, featuring automated testing lines that ensure every module—be it a 1G SFP or a 400G QSFP-DD—meets the highest reliability standards.

Company Details:
  • Registration Date: 2016
  • Industry Experience: 12 Years
  • QC Team: 45 Professionals
  • R&D Team: 120 Engineers
Quality Control (IQC to FQC):

Our comprehensive system covers Optical power testing, wavelength verification, and aging tests. Every unit undergoes 100% compatibility testing with major switch brands.

Global Reach:

Serving North America, Europe, Southeast Asia, and the Middle East, we are the trusted partner for Data Center operators and System Integrators globally.

Industry Trends & Future Outlook

The interconnect industry is moving toward 800G and 1.6T speeds, but the demand for optimized 10G/25G solutions remains the backbone of the enterprise market. We are seeing a significant trend toward Green Networking—connectors and transceivers that offer lower power consumption per gigabit. Furthermore, the integration of AI-driven diagnostics (Digital Diagnostic Monitoring - DDM) within Compact SFP modules is allowing for predictive maintenance in vast fiber networks.

As a forward-thinking factory, Dorelink is currently investing in Silicon Photonics and Co-Packaged Optics (CPO) research to ensure our customers are prepared for the next decade of data explosion.

Frequently Asked Questions (FAQ)

What is the difference between SFP and Compact SFP (CSFP)?

Standard SFP supports one channel (either duplex or simplex), whereas Compact SFP (CSFP) supports two independent bidirectional channels in the same mechanical form factor, effectively doubling the port density on a switch line card.

Do your Compact SFP connectors support OEM branding?

Yes, we provide full OEM/ODM services, including customized labeling, firmware coding for specific host compatibility (Cisco, Juniper, HPE, etc.), and custom packaging design.

How does Dorelink ensure the quality of its SFP cages and connectors?

We employ a 45-person QC team using IQC, IPQC, and FQC protocols. Each product undergoes reliability testing, including temperature cycling and signal integrity analysis in our 18,500㎡ facility.

Are your products compliant with international environmental standards?

Absolutely. All our optical communication products are RoHS and REACH compliant, ensuring they meet the strict environmental requirements of the European and North American markets.