FiberQ FiberQ
Technical Whitepaper & Catalog

SFP Cage 2xN (Stacked Ports) Manufacturer & Supplier

High-Density, Low-Latency SFP+ & SFP28 2xN Stacked I/O Solutions for Hyperscale Infrastructure and Next-Gen Networking Architectures.

Featured Catalog

High-Density Stacked SFP Cages (Part I)

Explore our precision-engineered, TE-compatible, and industry-standard press-fit 2xN stacked SFP modules designed for high signal integrity and thermal compliance.

TE Compatible 240P 2x6 Ports Press-Fit SFP+ Cage With Integrated Connector

1-2007562-8 TE Compatible 240P 2x6 Ports Press-Fit SFP+ Cage With Integrated Connector

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TE Replacement 240P 2x6 Ports Light Pipe Press-Fit SFP+ Cage With Integrated Connector

2180640-1 TE Replacement 240P 2x6 Ports Light Pipe Press-Fit SFP+ Cage With Integrated Connector

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TE Compatible 2347721-8 SFP28 Cage 240P Stacked 2x6 Ports Press Fit ZSFP+ Cage With Light Pipe

TE Compatible 2347721-8 SFP28 Cage 240P Stacked 2x6 Ports Press Fit ZSFP+ Cage With Light Pipe

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TE Compatible Through Hole 160P 2x4 Ports Press Fit SFP+ Cage With Integrated Connector

2007394-6 TE Compatible Through Hole 160P 2x4 Ports Press Fit SFP+ Cage With Integrated Connector

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Pulse Compatible 160P Stacked 2x4 Ports Press Fit SFP+ Cage With Light Pipe

SFPP-3120-L Pulse Compatible 160P Stacked 2x4 Ports Press Fit SFP+ Cage With Light Pipe

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Pulse Compatible 40P Stacked 2x1 Ports Press Fit SFP Cage With Integrated Connector

SFP013-L Pulse Compatible 40P Stacked 2x1 Ports Press Fit SFP Cage With Integrated Connector

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TE Replacement Through Hole 320P 2x8 Ports Press-Fit SFP+ Cage With Light Pipe

2169788-1 TE Replacement Through Hole 320P 2x8 Ports Press-Fit SFP+ Cage With Light Pipe

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TE Replacement Through Hole 80P 2x2 Ports Press-Fit SFP+ Cage With Integrated Connector

2007417-8 TE Replacement Through Hole 80P 2x2 Ports Press-Fit SFP+ Cage With Integrated Connector

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Deep Technical Insights

Understanding 2xN Stacked SFP Architecture & Signal Integrity

As modern telecommunications and data processing centers scale up, space optimization on the host Printed Circuit Board (PCB) has become a primary bottleneck. The 2xN (Stacked Ports) architecture solves this density crisis by stacking two horizontal rows of cages in a single integrated component, effectively doubling port density within the same rack unit front-panel real estate.

Implementing stacked configurations requires sophisticated engineering to address complex mechanical and electrical challenges, including:

  • Optimized Signal Integrity: Utilizing high-performance copper alloys to minimize insertion loss, return loss, and crosstalk at frequencies supporting 10Gbps SFP+ and 28Gbps SFP28 rates.
  • Dynamic EMI Suppression: Elastomeric gaskets and Beryllium Copper (BeCu) contact fingers provide multiple points of contact to ground the cage assembly securely, preventing high-frequency leakage.
  • Thermal Dissipation Paths: Integrated light pipes and optimized venting flow channels allow heat generated by active optical transceivers to escape efficiently.

Key Architectural Parameters

Pin Configurations:

Available in 40-Pin (2x1), 80-Pin (2x2), 160-Pin (2x4), 240-Pin (2x6), and 320-Pin (2x8) variations aligning with SFF standards.

Termination Types:

Press-Fit (solderless compliant pins) and Through-Hole configurations supporting reliable mechanical retention and seamless PCB integration.

Compatibility & Testing:

Engineered to replace major OEM products (TE Connectivity, Molex, Pulse) while meeting IEEE 802.3 and INF-8074i specifications.

Global Trends

Evolutionary Trends in Stacked 2xN Interconnects

The telecommunication and cloud networking landscape is undergoing a structural paradigm shift. We track the key drivers determining the adoption of modern stacked SFP solutions.

Transition to 28G SFP28 and Beyond

With cloud service providers scaling backbones to 100G and 400G, the demand for 2xN SFP28 cages supporting data rates up to 28 Gbps per channel has accelerated. These ports demand much tighter manufacturing tolerances and optimized PCB footprints to minimize impedance mismatch and return loss.

🔥

Next-Gen Thermal Management

Higher bandwidth transceivers draw more power, generating substantial heat. The integration of high-grade copper heat sinks directly into the 2xN cage assembly, coupled with dual or quad lightpipes, ensures both active thermal management and visible system status indication without sacrificing vital airflow paths.

🛡️

EMI Shielding for High-Frequency Systems

As operating frequencies increase, preventing radiation and electromagnetic interference becomes critical to maintaining systemic reliability. Modern stacked designs incorporate continuous spring fingers and advanced ground-pin arrays to minimize the aperture slots where high-frequency noise could leak.

12,600㎡

Modern Production Facility

240+

R&D Engineers

62

Dedicated QC Inspectors

1,450+

Supply Chain Partners

China Factory 4.0

China Factory 4.0: Supply Chain Resilience & Production Efficiency

Operating from our modern 12,600㎡ manufacturing facility, FiberQ leverages high-precision manufacturing, automated assembly lines, and rigorous inspection technologies to produce class-leading stacked SFP cages. By partnering with over 1,450 supply chain partners, we ensure uninterrupted raw material sourcing and agility in production scheduling.

Our quality control regime includes:

  • Automated Optical Inspection (AOI) to guarantee perfect physical dimensions of compliant pins.
  • Interferometric inspections ensuring perfect alignment of fiber interfaces.
  • Extended high-temperature aging chambers simulating severe operating environments.
  • A quality control division with 62 experienced inspectors monitoring every batch.

With 12 years of industry expertise and 6 years of export history, we support custom OEM/ODM partnerships that align with stringent international quality standards, securing annual export revenues of approximately USD 9.5 million.

Production Facility Detail 7
Global Demands & Scenarios

Procurement Demands and Localized Implementations

Enterprise and telecom operators globally require robust technical compliance. Our stacked SFP configurations are optimized for demanding industrial and commercial applications.

North American Hyperscale Centers

High-density computing arrays demand SFP+ and SFP28 2x6 or 2x8 configurations to cluster server chassis. Mechanical durability (up to 250 mating cycles) and low electrical impedance are critical path parameters for system integrators.

European Telecom & 5G Rollouts

Outdoor cabinets and base stations demand rugged performance. Stacked cages featuring integrated elastomeric gaskets provide dust resistance and extreme temperature operational stability from -40°C up to +85°C.

Asia-Pacific Industrial Automation

Factory 4.0 automation systems utilize 2x1 and 2x2 stacked configurations on compact DIN-rail controllers. Stable press-fit technology replaces traditional wave-soldering, eliminating cold-solder joint failures under high vibrational stress.

FAQ

SFP Cage 2xN Technical Q&A

Expert insights answering critical engineering, sourcing, and design questions regarding stacked SFP systems.

What are the mechanical and electrical advantages of Press-Fit (Compliant Pin) termination in stacked SFP cages?
Press-fit (compliant pin) technology allows solderless mechanical connection to multi-layer PCBs. This technique avoids thermal stress during the wave soldering process, prevents copper pad delamination, and provides high mechanical retention forces (meeting standard insertion and extraction cycle metrics). Solderless designs also facilitate simple rework or replacement in the field.
How does FiberQ handle EMI shielding in high-density 2x8 configurations?
We utilize continuous Beryllium Copper (BeCu) ground fingers and conductive elastomeric gaskets that bridge the gaps between the transceiver module casing and the port housing. This structure minimizes the effective aperture slot sizes, significantly reducing electromagnetic leakage even at high frequencies up to 28 GHz (typical in SFP28 deployments).
Can FiberQ stacked cages directly replace TE Connectivity or Molex models?
Yes, our 2xN stacked SFP, SFP+, and zSFP+ cages are engineered to meet SFF Committee standards (SFF-8431, SFF-8074i). This ensures direct compatibility with footprint layouts, contact pin configurations, and bezel openings, providing seamless drop-in replacements for standard TE Connectivity, Molex, and Pulse components.
What level of customization does FiberQ provide for OEM/ODM clients?
Backed by our team of 240 R&D engineers, we offer extensive adaptation paths. This includes custom lightpipe lengths/shapes, localized heatsink heights and fin arrays to optimize specific chassis airflow profiles, customized pin lengths, and optimized impedance tolerances for high-frequency applications.
Complete Catalog

High-Density Stacked SFP Cages (Part II)

Review additional configurations including enhanced EMI shielding, integrated lightpipes, and Molex/TE replacement profiles.

TE Compatible Through Hole 320P Press-Fit 2x8 EMI Shielded SFP+ Cage With Light Pipe

2274867-6 TE Compatible Through Hole 320P Press-Fit 2x8 EMI Shielded SFP+ Cage With Light Pipe

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TE Compatible Through Hole 200P Press-Fit 2x5 EMI Shielded SFP+ Cage With Light Pipe

1-2132403-6 TE Compatible Through Hole 200P Press-Fit 2x5 EMI Shielded SFP+ Cage With Light Pipe

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TE Compatible Through Hole 160P Press-Fit 2x4 EMI Shielded SFP+ Cage With Light Pipe

2007399-6 TE Compatible Through Hole 160P Press-Fit 2x4 EMI Shielded SFP+ Cage With Light Pipe

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TE Compatible Through Hole 40P Press-Fit 2x1 EMI Shielded SFP+ Cage With Connector

2007538-8 TE Compatible Through Hole 40P Press-Fit 2x1 EMI Shielded SFP+ Cage With Connector

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Molex Compatible 2x1 Ports Through Hole 40P Press-Fit EMI Shielded SFP Cage With Connector

754625001 Molex Compatible 2x1 Ports Through Hole 40P Press-Fit EMI Shielded SFP Cage With Connector

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TE Replacement 2x1 Ports Through Hole Press-Fit 40P EMI Shielded ZSFP+ Cage With Connector

2198318-1 TE Replacement 2x1 Ports Through Hole Press-Fit 40P EMI Shielded ZSFP+ Cage With Connector

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TE Compatible Through Hole Press-Fit 152P 2x2 Ports EMI Shielded ZQSFP+ Cage With Lightpipe

2308171-1 TE Compatible Through Hole Press-Fit 152P 2x2 Ports EMI Shielded ZQSFP+ Cage With Lightpipe

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TE Compatible Through Hole 80P 2x2 Ports Press-Fit SFP+ Cage & Connector With Light Pipe

2007417-1 TE Compatible Through Hole 80P 2x2 Ports Press-Fit SFP+ Cage & Connector With Light Pipe

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All 2xN (Stacked Ports) Products