SFP Cages Manufacturer | Custom SFP/SFP+ Cages for Network Equipment

What Is an SFP Cage?

An SFP cage is a metal housing designed to hold and protect SFP, SFP+, or QSFP optical transceiver modules on network devices such as switches, routers, and servers.
It provides mechanical stability, EMI shielding, and heat dissipation to ensure reliable data transmission in high-speed Ethernet applications.

In short, the cage acts as the physical interface between the optical module and the PCB, helping to maintain signal integrity and protect the module from external interference.

Why SFP Cages Are Essential for High-Speed Networks

As data centers and telecom networks move toward 10G, 25G, and 100G transmission, SFP cages play a vital role in ensuring performance consistency.

Key functions include:

• EMI Shielding: Reduces electromagnetic interference for stable signal performance.

• Heat Dissipation: Improves thermal management for high-speed transceivers.

• Durability: Precision metal structure provides long-term reliability under frequent insertion cycles.

• Modular Design: Compatible with various configurations such as 1x1, 1x2, 1x4, and 2x4 layouts.

These features make SFP and SFP+ cages indispensable components in modern communication infrastructure.

SFP Cage Configurations and Options

At JIAXUN, we manufacture and supply a wide range of SFP cages to meet diverse application needs. Our cages are available in several configurations:

We also provide custom SFP cages with tailored dimensions, plating options, and EMI springs to fit your PCB layout and performance requirements.

Custom SFP Cage Manufacturing & OEM Service

As a professional SFP cages manufacturer in China, JIAXUN offers OEM/ODM services for global customers in networking, telecommunications, and industrial automation.

Our factory is equipped with:

• Automated stamping and forming lines for consistent quality

• In-house tooling and mold design for precise customization

• Strict quality control (ISO9001) and RoHS/REACH compliance

• Experienced R&D engineers to support technical design and product development

Whether you need standard SFP cages or custom SFP/SFP+ cages with unique mechanical structures, TRXCOM provides one-stop solutions from design to mass production.

Applications of SFP Cages

JIAXUN’s SFP cages are widely used in:

• Network switches and routers

• Optical transceiver modules

• Servers and storage systems

• Industrial Ethernet devices

• Communication base stations

Their high EMI shielding and stable mechanical design make them ideal for high-density and high-speed connectivity environments.

Why Choose JIAXUN as Your SFP Cage Supplier

• Over 10 Years of Experience in connector and cage manufacturing

• Comprehensive Product Portfolio: RJ45 connectors, integrated magnetics, LAN transformers, and optical cages

• Fast Delivery and Global Support for OEM/ODM projects

• Competitive Pricing without compromising quality

We aim to help network device manufacturers reduce costs, enhance performance, and accelerate product development with reliable SFP cage solutions.

Contact JIAXUN – Trusted SFP Cages Manufacturer

Looking for a dependable SFP cage supplier for your next network hardware project?
JIAXUN provides customizable, high-quality SFP/SFP+ cages with strong EMI performance and precision mechanical design.