Deltavox
Deltavox
Engineered for high density and rigorous EMI suppression. Explore our top 8 featured press-fit stacked modules with integrated connectors.
An engineering analysis of space optimization, compliant pin structures, and high-frequency signal integrity.
In modern networking hardware, board space optimization is a primary design driver. The transition from single-row (ganged) layouts to 2xN (Stacked Ports) configurations allows hardware architects to double port density along the PCB edge. A stacked cage features two tiers of ports (an upper port and a lower port) combined into a single mechanical structure. This setup utilizes shared ground lines, decreasing the total pin footprint and improving signal routing efficiency on multi-layer host boards.
From an electrical perspective, transmitting data at 10 Gbps (SFP+), 25 Gbps (SFP28), or even 56 Gbps (SFP56) over copper media demands careful impedance management. Any physical discontinuity along the signal path creates reflections and increases insertion loss. By housing the high-frequency contact array inside a shielded cage system, Deltavox Optics' stacked configurations maintain a controlled differential impedance of 100Ω ± 10Ω. This control supports compatibility with multi-gigabit protocols and helps prevent transmission errors in demanding environments.
Mitigating deployment risks through signal integrity testing, thermal management, and mechanical durability.
Global system integrators and tier-one network equipment manufacturers (NEMs) face stringent standards when choosing mechanical and interconnect components. The hardware must survive a minimum lifespan of 10 to 15 years under constant operating conditions inside data centers. Consequently, procurement decisions rely heavily on rigorous verification reports addressing three key performance indicators: Electromagnetic Compatibility (EMC), thermal efficiency, and physical durability.
Equipped with elastomeric EMI gaskets or spring-finger tabs, our 2xN cages establish constant grounding contact with both the bezel cutout and the insertion transceiver, suppressing radiation leakages up to 40 GHz.
Stacked layouts present thermal challenges because the lower port is partially insulated from horizontal airflow. Customized ventilation perforations and top-mounted heat sinks help balance heat dissipation.
High-durability nickel-plated copper alloys withstand at least 100 insertion/extraction cycles. This helps maintain consistent contact pressure and prevents pin wear over long-term field use.
Furthermore, sourcing components from a single vendor with cross-compatibility guarantees reduces interoperability risks. Enterprise design groups require extensive 3D CAD geometry models (STEP files) and High-Frequency Structure Simulator (HFSS) S-parameter models. These tools let engineers simulate insertion loss, return loss, and near-end crosstalk (NEXT) prior to physical board fabrication, speeding up overall system development cycles.
Inside Deltavox Optics' advanced production facilities, automated inspection, and raw material sourcing.
Operating a modern 18,500 square meter manufacturing plant, Deltavox Optics Technologies Co., Ltd. integrates component design, precision injection molding, metal stamping, and automated assembly under one roof. Our vertical integration strategy ensures production consistency and allows us to adapt to changing market requirements. Supported by 12 years of industry experience and a network of 850 strategic partners, we maintain a reliable supply chain to support project demands worldwide.
Precision stamping dies are critical for 2xN cage manufacturing. Maintaining compliant-pin alignment demands stamping tolerances tighter than ±0.02 mm. A minor variance in pin geometry can cause PCB damage during press-fit insertion or lead to intermittent electrical connections under thermal cycling. Deltavox Optics uses high-speed precision stamping systems and real-time vision inspection tools to check critical dimensions before products move to packaging.
Our quality control workflow includes automated optical inspection (AOI), transmission performance checks, temperature cycling, accelerated aging tests, and mechanical stress evaluations. Our team of 56 quality inspectors oversees every phase of production, from raw material validation to final packaging. This ensures that every shipped unit complies with target industry specifications.
Meeting international environmental, material safety, and performance standards.
Compliance with global environmental and safety standards is essential for direct integration into enterprise-class hardware. Deltavox Optics manufactures all products in strict compliance with the following international directives:
In addition to manufacturing compliance, Deltavox Optics provides localized technical and engineering support. We assist customers with custom PCB layout planning, footprint optimization, and thermal analysis for crowded system chassis. Our engineering team works directly with client design groups to resolve mechanical interference, high-speed routing issues, or shielding requirements, helping reduce development time and project risk.
From core switching fabrics to edge distribution: Where 2xN stacked technology is deployed.
High-density 2xN SFP cages serve as essential interconnect building blocks across several major infrastructure applications:
Enables high-density top-of-rack (ToR) switch interfaces, aggregation platforms, and distribution panels to maximize throughput per rack unit.
Deployed in Baseband Units (BBUs), Distributed Units (DUs), and mobile edge aggregation switches to process high-bandwidth fronthaul and backhaul traffic.
Provides high-reliability connectivity for Enterprise Storage Area Networks (SAN) and high-speed Network Attached Storage (NAS) controllers.
As network architectures transition from SFP+ (10G) toward SFP28 (25G/28G) and zSFP+ (28G NRZ / 56G PAM4) configurations, design demands continue to increase. Deltavox Optics is actively developing SFP56 and SFP-DD (Double Density) stacked configurations. These new products are designed to support higher data rates while maintaining backward compatibility with existing optical transceiver form factors, helping protect customers' infrastructure investments.
Technical responses to common engineering and procurement questions regarding 2xN stacked SFP cages.
High-frequency performance assemblies optimized for maximum electromagnetic shielding and low insertion loss.
About Deltavox Optics Technologies Co., Ltd. - A Trusted Partner in Global Optical Communications.
Deltavox Optics Technologies Co., Ltd. is a professional optical communication solutions provider specializing in the design, manufacturing, and global supply of high-performance optical transceivers, fiber optic modules, and networking components. Established in 2016, the company operates from a modern manufacturing facility with a building area of 18,500㎡ and has developed strong expertise in optical communication technologies.
With an annual export revenue of approximately US$18 million, Deltavox Optics has accumulated 7 years of export experience and 12 years of industry experience, serving customers across telecom, data center, enterprise networking, and industrial communication sectors worldwide.
The company maintains strict quality management systems and performs comprehensive quality inspections, including automated optical testing, transmission performance verification, temperature cycling tests, aging tests, compatibility testing, and reliability evaluations. A professional quality control team of 56 inspectors ensures every product meets international standards and customer requirements.
Deltavox Optics has extensive experience in international trade and maintains long-term cooperation with global distributors, system integrators, telecom operators, and networking equipment providers. The company’s main markets include North America, Europe, Southeast Asia, the Middle East, and South America.
With a strong supply chain network supported by approximately 850 strategic partners, Deltavox Optics provides stable production capacity and efficient delivery solutions. Its major customer groups include optical communication distributors, data center operators, telecom companies, network equipment manufacturers, and enterprise IT solution providers.
The company has a dedicated R&D team focused on optical module innovation, product optimization, and customized communication solutions. Deltavox Optics offers various customization options, including custom wavelengths, transmission distances, package types, firmware configurations, labeling services, and OEM/ODM solutions.
In the past year, Deltavox Optics successfully launched 168 new optical communication products, supported by a professional R&D team of 126 optical engineers and technical specialists. Through continuous innovation, advanced manufacturing capabilities, and strict quality control, Deltavox Optics is committed to delivering reliable optical transceiver solutions for global connectivity networks.
