Optical Transceivers 1.25G SFP Module Factory & Exporters

Providing Enterprise-Grade Carrier Class SFP Transceiver Solutions Globally. Certified Custom OEM/ODM Engineering for Next-Gen Fiber Architectures.

High Performance Series

Our Featured 1.25G SFP Transceiver Modules

Engineered for performance, efficiency, and broad compatibility, our optical modules support networks in over 80 countries.

1310nm-TX/1550nm-RX Simplex LC Bidirectional Fiber Optic Transceivers

1310nm-TX/1550nm-RX Simplex LC Bidirectional Fiber Optic Transceivers Module Single Mode 1G Bidi SFP 20km

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Multimode Dual LC Optical Transceiver MMF 850nm 1.25G SFP

Multimode Dual LC Optical Transceiver MMF 850nm 1.25G SFP Fiber Optic Module 550m

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Duplex LC SMF Fiber Optic Transceiver Single Mode 1310nm

Duplex LC SMF Fiber Optic Transceiver Single Mode 1310nm 1.25G SFP Optical Module 10km

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1000BASE-ZX Mini Gbic Fiber Optical Transceiver Single Mode 1550nm

1000BASE-ZX Mini Gbic Fiber Optical Transceiver Single Mode 1550nm 1G SFP Module 80km

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1000BASE-SX SFP Ethernet Module 850nm 550m Duplex LC MMF

1000BASE-SX SFP Ethernet Module 850nm 550m Duplex LC MMF Fiber Optical Transceiver

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1000BASE-T SFP 1310nm 2km Duplex LC MMF Optical Fiber

1000BASE-T SFP 1310nm 2km Duplex LC MMF Optical Fiber Transceiver Module

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1000BASE-LX/LH SFP Module 1310nm 10km DOM Duplex LC SMF

1000BASE-LX/LH SFP Module 1310nm 10km DOM Duplex LC SMF Optical Transceiver

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1000BASE-LX/LH SFP Transceiver 1310nm 20km Duplex LC SMF

1000BASE-LX/LH SFP Transceiver 1310nm 20km Duplex LC SMF Optical Module

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Industrial Insight

The Global Demand for 1.25G SFP Modules

In an era driven by 400G and 800G optical innovations, the 1.25G SFP (Small Form-factor Pluggable) module remains the structural foundation of global telecommunication systems and enterprise networks. It offers a balanced ratio of cost-efficiency, technical maturity, and operational longevity, ensuring stable deployments across various industries.

From Metro Ethernet infrastructures in North America to FTTH expansion programs in Southeast Asia, Gigabit Ethernet SFPs provide the reliable physical layer interface required to transmit voice, video, and industrial telemetry.

  • Legacy Compatibility: Fits legacy switch platforms and terminal equipment smoothly.
  • Broad Range Wavelengths: Spans 850nm, 1310nm, 1550nm, and Bidi wavelengths (TX1310/RX1550).
  • Industrial Toughness: Available in commercial (0~70°C) and industrial-grade (-40~85°C) configurations.

Critical Node Connectivity

Our modules bridge enterprise routers, switches, media converters, and firewall systems over distances ranging from 550m to ultra-long hauls of 160km, providing high signal integrity and low latency.

MSA Multi-Source Agreement

Built strictly in accordance with SFP MSA (Multi-Source Agreement) standards and SFF-8472 protocol. We guarantee 100% interoperability with major switch vendors globally.

About Novafiber

Novafiber Communications Co., Ltd.

A leading optical transceiver manufacturer delivering fiber optic communication solutions for data centers, telecom networks, and enterprises worldwide.

2016
Year Established
9+ Yrs
Industry Experience
$8.5M
Annual Export Value
1200+
Supply Chain Partners
180+
R&D Engineers

Operational Scale

Novafiber operates a precision manufacturing facility covering approximately 420㎡. Designed for high-end optical alignment, testing, and component calibration, the facility maximizes unit-area production throughput and efficiency.

Rigorous Quality Assurance

We employ 65 quality inspection personnel. Every 1.25G SFP Module undergoes systematic procedures including IPC standard verification, environmental stress screening (ESS), high-temperature aging, and 100% interoperability field testing.

Custom OEM/ODM & Innovation

With 180 experienced R&D engineers, we released 320 new product variations last year. We support protocol adaptation, EEPROM customization, wavelength tuning, custom logo printing, and packaging branding.

Manufacturing Excellence

The Advantage of China's Optical Value Chain

China is a global hub for optoelectronics manufacturing, providing reliable, high-yield production of 1.25G SFP transceivers. At Novafiber, we leverage this localized ecosystem to combine raw material cost efficiency with modern manufacturing standards.

Our facility near major domestic semiconductor and raw optical component centers allows us to source quality lasers (TOSA), photodetectors (ROSA), and PCBA sub-assemblies efficiently. This proximity helps us maintain a stable supply chain during market fluctuations.

  • Advanced Automation: Automatic optical power coupling and multi-station wavelength testing limit human error.
  • Raw Component Traceability: Component tracking from the wafer state to the final boxed transceiver.
  • Global Shipping: Direct logistics connections from Shenzhen, Guangzhou, and Hong Kong to ensure fast delivery.
Manufacturing Element Novafiber Standard Industry Average
Burn-In testing 100% (48 Hours continuous) Sample basis only
EEPROM Compatibility Custom coded for 30+ brands Generic MSA code only
Laser Sourcing Top-tier industrial lasers Variable low-cost suppliers
Return Rate (RMA) < 0.05% < 0.3%
Use Cases

Localized Application Scenarios

How network system integrators and engineers deploy our 1.25G SFP modules across global industries.

FTTH & FTTx Broadband Distribution

Telecommunication operators use 1.25G Single Mode BiDi SFPs to maximize fiber efficiency. BiDi modules transmit and receive on a single strand of fiber (using separate wavelengths like 1310nm/1550nm), doubling the user density in Fiber-to-the-Home distribution networks.

Enterprise Data LANs & Legacy Nodes

Integrators rely on 850nm Multimode 550m SFP modules to link core switch racks with distribution layer hardware in enterprise offices, schools, and hospitals, maintaining reliable local area networks.

Industrial Automation & Smart Grid Systems

Using industrial-temperature range SFPs (-40°C to 85°C), system integrators build networks for wind farms, railway networks, and electrical substations where components are exposed to temperature extremes and electrical interference.

Engineering Specs

1.25G SFP Technical Specifications & Ordering Guide

Compare optical characteristics across our standard 1.25G SFP transceivers. Alternate configurations are customizable upon request.

Part Class / Standard Fiber Type Wavelength (nm) Connector Transmission Distance DOM Support Operating Temp
1000BASE-SX MMF (OM2/OM3) 850nm Duplex LC 550m Yes / No Option 0 ~ 70°C / -40 ~ 85°C
1000BASE-LX/LH SMF 1310nm Duplex LC 10km / 20km Yes (Digital Diagnostics) 0 ~ 70°C / -40 ~ 85°C
1000BASE-EX SMF 1550nm / 1310nm Duplex LC 40km Yes (DDM) 0 ~ 70°C / -40 ~ 85°C
1000BASE-ZX SMF 1550nm Duplex LC 80km Yes (DDM) 0 ~ 70°C
1000BASE-EZX SMF (DFB+APD) 1550nm Duplex LC 100km / 120km Yes 0 ~ 70°C
1000BASE-ZXC SMF (High-Power) 1550nm Duplex LC 160km Yes 0 ~ 70°C
1G BiDi (WDM) SMF (Single Strand) TX1310/RX1550 (Pair) Simplex LC 20km / 40km / 80km Yes 0 ~ 70°C / -40 ~ 85°C
Procurement Guide

Procurement Best Practices for Enterprises

When purchasing 1.25G SFP transceivers, network operators look for elements beyond the unit price. High compatibility, supply stability, and technical reliability are critical to preventing costly network downtime.

As a global exporter, Novafiber helps enterprise clients mitigate risk through transparent quality standards and testing before shipping.

  • Hardware Testing: We test our modules directly on major switches (Cisco, Juniper, HP, Arista) in our lab.
  • Laser Performance: We specify high-grade TOSA lasers for stable optical power levels.
  • Compliance & Sustainability: CE, FCC, RoHS, and WEEE certifications are standard for European and North American imports.

Novafiber's OEM Integration Process

We provide tailored solutions for system integrators, including custom EEPROM parameter writes (vendor name, serial numbers, part numbers, compatibility profiles) and custom labeling.

Our engineers collaborate with your team to review technical specifications, ensuring your modules perform reliably in challenging operational settings.

Q&A

Frequently Asked Questions

Technical answers to help system architects and procurement teams evaluate 1.25G SFP transceivers.

Q1: What is the difference between 1000BASE-SX, LX, EX, and ZX SFP modules?
These standards represent different transmission distances and fiber media types: 1000BASE-SX uses multimode fiber (850nm) for short distances up to 550m. 1000BASE-LX works on single-mode fiber (1310nm) for up to 10km or 20km. 1000BASE-EX extends range to 40km at 1310nm or 1550nm. 1000BASE-ZX is designed for long hauls up to 80km (1550nm), and EZX/ZXC modules can reach 100km to 160km using sensitive APD receivers.
Q2: Can a 1.25G SFP module operate in a 10G SFP+ port?
This depends on the host switch's hardware capabilities. Many switches with 10G SFP+ ports support dual-rate configurations and can auto-negotiate down to 1G speed when a 1.25G SFP module is plugged in. However, you should check your switch's datasheet or manually configure the port speed to 1000Mbps to ensure link establishment.
Q3: What is DOM (Digital Optical Monitoring) / DDM, and why is it important?
DOM (Digital Optical Monitoring) or DDM (Digital Diagnostics Monitoring) allows users to monitor real-time parameters of the SFP. This includes optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage. DDM helps network engineers troubleshoot link anomalies and predict failures before the network goes down.
Q4: What is a Bidi SFP, and how does it save fiber cabling costs?
A BiDi (Bidirectional) SFP transmits and receives signals over a single strand of optical fiber instead of using two separate fibers. It achieves this by using Wavelength Division Multiplexing (WDM) to separate the transmit and receive wavelengths (e.g., TX 1310nm / RX 1550nm on one side, and TX 1550nm / RX 1310nm on the other). This configuration can reduce physical fiber cabling costs by up to 50%.
Q5: How does Novafiber ensure transceiver compatibility with different switch vendors?
Every switch manufacturer codes their hardware to check for specific vendor signatures inside the SFP's EEPROM. Novafiber analyzes these signature requirements and programs the EEPROM of each module for compatibility with platforms like Cisco, HP, Juniper, H3C, Huawei, and Arista.
High Reach Series

Long Range & Specialized 1G SFP Modules

Designed for long-distance transport, metro loops, and campus backbones with low-attenuation performance.

1000BASE-EX SFP 1550nm 40km Duplex LC SMF

1000BASE-EX SFP 1550nm 40km Duplex LC SMF Fiber Optical Transceiver Module

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1000BASE-ZX SFP 1550nm 80km DOM Duplex LC SMF

1000BASE-ZX SFP 1550nm 80km DOM Duplex LC SMF Optical Transceiver Module

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1000BASE-EZX SFP 1550nm 100km Duplex LC SMF

1000BASE-EZX SFP 1550nm 100km Duplex LC SMF Optical Transceiver Module

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1000BASE-EZX SFP Transceiver 1550nm 120km DOM Duplex LC SMF

1000BASE-EZX SFP Transceiver 1550nm 120km DOM Duplex LC SMF Fiber Optical Module

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1000BASE-ZXC SFP Module 1550nm 160km Duplex LC SMF

1000BASE-ZXC SFP Module 1550nm 160km Duplex LC SMF Fiber Optical Transceiver

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1000BASE-LX/LH SFP Transceiver 1310nm 10km DOM Duplex LC SMF

1000BASE-LX/LH SFP Transceiver 1310nm 10km DOM Duplex LC SMF 1.25G Optical Module

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1000BASE-SX SFP 850nm 550m DOM Duplex LC MMF 1.25G

1000BASE-SX SFP 850nm 550m DOM Duplex LC MMF 1.25G Transceiver Module

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1000BASE-ZX SFP 1550nm 80km Duplex LC SMF 1.25G

1000BASE-ZX SFP 1550nm 80km Duplex LC SMF 1.25G Optical Transceiver Module

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Facility View

Novafiber Production & Testing Facility

A view inside our labs and cleanrooms where our optical modules are assembled, calibrated, and inspected.

All 1.25G SFP Module Products