China Best SFP Module Connector Factories & Factory

High-Density Interconnects, Advanced Transceiver Assemblies & Scale OEM Manufacturing for Optical Communications

Featured High-Speed Connectors & Transceivers

Explore our leading selection of SFP/SFP+ cages, optical modules, and high-performance RJ45 connectors engineered for enterprise and telecom workloads.

SMT RJ45 Male to Female Connector
SMT RJ45 Male to Female Connector with LED 7498010210A
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SFP+ Cage With Heat Sink
2-2170747-2 Light Pipe Press-Fit Through Hole EMI Shield Housing 1x4 SFP+ Cage With Heat Sink
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SFP28 25G BiDi Transceiver
Bidirectional 1270nm-TX/1310nm-RX SFP28 25G BiDi Transceiver 40km Simplex LC SMF DDM Optical Module
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TE Compatible SFP28 Cage
TE Compatible 2347721-8 SFP28 Cage 240P Stacked 2x6 Ports Press Fit ZSFP+ Cage With Light Pipe
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TE Compatible SFP Cage Assembly
1888424-1 TE Compatible Through Hole EMI Shielded Housing 1x2 Ports Press-Fit SFP Cage Assembly
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Vertical RJ45 Connector
SI-46017-F 10/100 Base-t Vertical Top Entry Straight Female Socket RJ45 Connector With Leds
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TE Compatible SFP Cage Assembly 1x8
2294408-2 TE Compatible Through Hole EMI Shielded 1x8 Ports Press-Fit SFP Cage Assembly
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RJ45 Ethernet Jack POE
RJ 45 Connectors with POE RJ45 Ethernet Jack 1-6605833-1 SFE-PRT-08534
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LumoWave Optical Technology Co., Ltd.

LumoWave Optical Technology Co., Ltd. is an established industry pioneer and professional optical transceiver and interconnect manufacturer. We specialize in providing high-speed, high-density fiber optic communication solutions engineered for data centers, telecom operators, enterprise networks, and cloud computing environments worldwide.

Under our proprietary brand LumoWave, we design, test, and manufacture an extensive array of active and passive optical transmission products. Our catalog ranges from 10G to 800G optical components, including SFP, QSFP, QSFP-DD, and coherent optical transmission architectures, alongside compatible cages, stacked port systems, and connectors.

"By integrating mechanical integrity with advanced optoelectronic design, LumoWave provides the crucial layer-0 infrastructure that powers today’s massive AI computing clusters and enterprise backbones."

Founded in 2016, LumoWave has scaled from a regional technology firm into a globally recognized OEM/ODM partner. Operating out of a state-of-the-art facility covering approximately 320,000㎡, we combine advanced automation with stringent assembly practices. Our infrastructure produces an annual export revenue of over $12 million, supported by 8 years of international export experience and a deep 12-year legacy of technical expertise in the optoelectronics and connection systems industry.

Today, our supply chain ecosystem includes more than 1,200 upstream and downstream partners. This vast matrix allows us to maintain flexible lead times, absorb sudden demand spikes, and secure hard-to-source raw materials, ensuring continuous product availability for our enterprise clients.

320k㎡
Factory Floor Area
$12M+
Annual Export Value
85
R&D Engineers
1,200+
Ecosystem Partners

China's SFP Supply Chain & Manufacturing Advantages

Why global system integrators and tier-1 optical communication brands establish strategic sourcing partnerships in China's manufacturing clusters.

Unmatched Vertical Integration

Our facility hosts complete production cycles—from raw sheet metal stamping for EMI shielding cages to surface mount technology (SMT) for internal PCBs, automated optical alignment, and final laser-welding assemblies. This control over raw materials ensures rapid prototyping and structural consistency.

Optimized Operational Efficiencies

By leveraging China's robust industrial zones, we reduce lead times for key components (such as copper pins, optical lenses, and specialized heat sinks). The savings generated from regional supply chains are directly reinvested into R&D and higher grade alloy materials.

Advanced Automated Quality Testing

Precision is vital in high-speed optical data paths. Our production floor features automated multi-port alignment fixtures, continuous-wave laser diagnostics, and robotic press-fit insertion machinery that removes variance from high-density connector assembly.

Rigorous Testing & Quality Control

To operate reliably in high-density telecom switches, SFP modules and connector cages must survive rigorous thermal profiles and environmental stress. LumoWave maintains a dedicated 45-person Quality Control team that monitors our proprietary testing protocol across three operational levels:

  • Incoming Quality Control (IQC): Inspecting incoming raw materials, including copper alloys, plastic housings (UL 94V-0 compliant), light pipe resin, and optoelectronic ICs.
  • In-Process Quality Control (IPQC): Real-time mechanical tolerance checks, AOI (Automated Optical Inspection) during PCB assembly, and multi-point dimensional validation.
  • Final Product Testing (FQC): 100% inspection of critical electrical and optical parameters prior to packaging.

Advanced Optoelectronic Diagnostics

Each active transceiver and connector housing assembly is subjected to high-fidelity test routines:

  • Optical Power & BER Testing: Validating launch power, receiver sensitivity, and Bit Error Rate (BER) parameters down to acceptable ITU standards.
  • Wavelength Accuracy Testing: Ensuring stability for single-mode, multi-mode, CWDM, and DWDM networks using optical spectrum analyzers.
  • Environmental Stress Screening (ESS): Exposing components to prolonged thermal cycling, high-humidity storage, and system-level burn-in stress.
  • EMI & Insertion Loss Analysis: Testing shield integrity and mechanical retention of press-fit cage assemblies to minimize return loss and cross-talk.

OEM/ODM Customization & Enterprise Requirements

Tailoring structural form factors, electrical layouts, and firmware compatibility for global system architectures.

Wavelength & Distance Tuning

We program active SFP modules to match specified channels for CWDM, DWDM, and BiDi architectures, enabling transmission distances from 220m up to 80km over single-mode fiber (SMF) or multi-mode fiber (MMF).

EEPROM Coding & Compatibility

Our custom software engineers program EEPROM data (Vendor Name, OUI, Serial Number, DDM/DOM parameters) to ensure direct compatibility with major hardware switches (Cisco, Juniper, Arista, HP, Huawei, and others).

Structural Heat Sink Designs

We modify thermal fins, thermal interface material (TIM) pads, and cage ventilation profiles to meet the precise heat dissipation requirements of dense server arrays and high-capacity network nodes.

Light Pipe & EMI Customization

Cages can be specified with varying light pipe geometries (single, dual, or quad indicator ports), coupled with conductive copper-alloy gaskets or elastomeric EMI gaskets to manage high-frequency leakage.

Localized Support & Compliance

As enterprise networks face stringent regional regulatory demands, LumoWave provides complete design verification and compliance tracking. We actively export to North America, Europe, Southeast Asia, and the Middle East, ensuring all products comply with localized telecommunication standards.

Our compliance portfolio includes RoHS (Restriction of Hazardous Substances), REACH, and UL 94V-0 flammability ratings for all plastic structures. Our active transceivers carry CE, FCC, and TUV safety certifications, allowing seamless integration into global mission-critical infrastructure projects.

Robust R&D Engine

Driven by rapid innovation and modern processing standards, our R&D facility employs a dedicated team of 85 optoelectronic and mechanical engineers. Last year alone, this group successfully released approximately 120 new product designs, focusing on thermal optimization, high-speed signal integrity, and energy-efficient 400G/800G optical structures.

LumoWave's ongoing research and development investments ensure that our interconnect technology, cage assemblies, and active modules remain compatible with upcoming MSA (Multi-Source Agreement) revisions and ITU standards.

Localized Application Scenarios

Where LumoWave high-speed interconnect products provide baseline connectivity.

Hyper-Scale Data Centers

In high-density server rack environments, our stacked 2x6 SFP28 cages and 10G/25G optical transceivers provide the necessary density and low latency required for east-west data traffic and rapid server clustering.

Metropolitan Area Networks (MAN)

Utilizing high-power, long-distance BiDi transceivers (up to 80km) alongside our robust optical modules, telecom operators deploy LumoWave components to link remote central offices with minimal optical loss.

Industrial Networking

For smart grid control rooms, manufacturing automation, and transit communication, our vertical and low-profile RJ45 connectors with built-in LEDs provide resilient structural connections under harsh physical conditions.

Trends & Insights: SFP Connector Evolution

The global networking landscape is undergoing a structural shift driven by the explosion of AI models, high-performance computing (HPC), and 5G network expansion. These demands require higher bandwidth density, better thermal management, and lower power consumption. As a result, SFP Module Connector Manufacturers are transitioning from classical SFP/SFP+ (10G/16G) configurations to advanced SFP28, SFP56, and multi-port QSFP-DD/OSFP configurations capable of processing 400G and 800G per link.

Thermal management has become the primary bottleneck in system design. High-speed transceivers generate significant heat, requiring advanced cage designs equipped with high-airflow heat sinks, optimized ventilation slots, and heat-pipe assemblies. Additionally, EMI (Electromagnetic Interference) leakage must be strictly controlled at higher speeds; this is achieved through press-fit contact tails, integrated EMI gaskets, and multi-point ground pins that connect directly to host PCBs. Sourcing components that balance mechanical integrity, thermal performance, and EMI shielding is a critical priority for system engineers.

Industry Technical Q&A

Expert technical answers regarding SFP cage structural design, transceiver programming, and deployment.

What is the advantage of using a Press-Fit (through-hole) SFP+ cage over typical SMT soldering cages?
Press-fit (elastic pin) technology provides robust mechanical anchorage to the host PCB without requiring thermal reflow soldering. This design provides superior mechanical retention, enabling cages to withstand repetitive transceiver insertion and extraction cycles. Additionally, it eliminates cold-solder joint failures and provides reliable, low-impedance grounding paths to mitigate EMI.
How does LumoWave guarantee compatibility with host hardware from brands like Cisco or Juniper?
We use a rigorous EEPROM programming and verification process. In our lab, each batch of transceivers is flashed with specific vendor codes, checksums, and firmware configurations. The modules are then tested on native host switch platforms (Cisco Catalyst/Nexus, Juniper EX/MX series, etc.) to ensure zero diagnostic alarms, error-free link-up, and full DOM (Digital Optical Monitoring) functionality.
What design factors minimize insertion loss and return loss in high-frequency SFP module connectors?
We control terminal geometry, use high-grade copper alloys (such as phosphor bronze) with precise gold-over-nickel plating, and maintain strict tolerances on the mating contact wipe. Advanced tooling ensures contact coplanarity, which minimizes impedance mismatches at the mating interface and reduces signal degradation at speeds up to 28 Gbps per channel.
What is the purpose of integrated light pipes on multi-port SFP cages?
Light pipes are structural PMMA (acrylic) conduits that route light from LEDs mounted on the host PCB to the front faceplate of the cage. This design allows network operators to monitor port link status and activity in real-time, even in dense configurations where direct panel LEDs would be obscured by cables.

High-Performance Interconnect Hardware Catalog

Ensure network stability with our industrial-grade RJ45 connectors, high-capacity cages, and active transceivers.

Right Angle RJ45 Connector with LED
With LEDs 1000 Base-T Low-Profile Right Angle RJ45 Connector
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BiDi Optical Transceiver 1x9
Single Mode 155M BiDi 1310nm-Tx/1550nm-Rx FC SMF 60km Air/Ground TTL 1x9 Optical Transceiver
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25G CWDM SFP28 Transceiver
Single Mode 25G CWDM SFP28 Transceiver 10km Duplex LC SMF Optical Transceiver Module
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1000BASE-ZX SFP Transceiver
1000BASE-ZX SFP 1550nm 80km Duplex LC SMF 1.25G Optical Transceiver Module
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Magnetic RJ45 Connector
JD2-0001NL JD2-0010NL 10/100 Base-t Vertical Top Entry Straight Magnetic Ethernet RJ45 Connector With Leds
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Shielded Dual USB RJ45 Connector
45F-10201DYD2NL 45F-10201DYDXNL Shielded Dual USB RJ-45 Female Connector With LEDs
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TE Replacement SFP+ Cage Heatsink
2198236-4 TE Replacement Through Hole 1x6 Ports Light Pipe Press-fit SFP+ Cage With Heatsink
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10GBASE-T SFP+ Copper Module
10GBASE-T SFP+ Copper RJ-45 80m Fiber Optical Transceiver Module
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Modern Manufacturing Facility & Equipment

A look into our production line, testing centers, and automated manufacturing setups.