Custom 40G QSFP+, 50G QSFP28 & 50G SFP56 Solutions (Enterprise Core & 5G Fronthaul)
Upgrading enterprise core networks and deploying next-generation 5G cell sites requires rock-solid reliability and seamless legacy integration. WolonFiber manufactures strictly MSA-compliant 40G QSFP+, 50G SFP56, and 50G QSFP28 optical interconnects optimized for mission-critical telecommunications and campus deployments. Leveraging advanced 1x50G PAM4 DSP technology and robust industrial thermal designs, our Wuhan facility delivers bespoke, cost-effective 40Gbps and 50Gbps modules. Every transceiver is precision-coded and live-tested to guarantee flawless plug-and-play interoperability with Cisco, Arista, Huawei, Nokia, and other elite routing hardware.
Custom 40G QSFP+ MODULE Series
Transitioning to 40 Gigabit Ethernet is the most cost-effective strategy for alleviating core switch congestion. Utilizing high-density MTP/MPO interfaces and advanced CWDM technologies, our QSFP+ transceivers instantly quadruple your enterprise bandwidth without overhauling existing fiber pathways.
💡 Bespoke Coding & Thermal Optimization: High-density 40G deployments often face strict heat dissipation and vendor lock-in challenges. We engineer customized solutions. Drawing on the expertise of 400-500 optical specialists across our 3 manufacturing plants, we individually code and temperature-stress test every QSFP+ MODULE to ensure seamless handshakes with your specific routing hardware. contact us directly!
Custom 40GBASE-SR4 QSFP+ Module
The standard backbone for enterprise Top-of-Rack (ToR) connectivity. Utilizing a highly reliable 850nm VCSEL array and a standard MTP/MPO interface, this multimode (MM) transceiver seamlessly handles high-density switch interconnects. We offer two tailored versions supporting either 150m or extended 300m transmission distances, perfectly precision-coded for Arista and Cisco infrastructure.
Custom 40G QSFP+ BiDi BDSR Module
Maximize your IT budget by reusing existing cabling. This BiDirectional (BDSR) optical module transmits 40Gbps over a single pair of standard multimode fiber via a Duplex LC interface. Eliminating the need for expensive MPO cable upgrades, it provides an instant, plug-and-play 10G-to-40G migration path for distances up to 100m or 150m.
Custom 40G QSFP+ CWDM4 Module
Engineered specifically for hyperscale data center interconnects (DCI). This module leverages high-stability CWDM DFB lasers to deliver cost-effective 40Gbps transmission over single-mode (SM) fiber up to 2km. Utilizing a standard LC interface, it dramatically reduces core switch power consumption while maintaining zero-packet-loss for leaf-spine architectures.
Universal 40G QSFP+ LX4 Module
The ultimate versatile transceiver for complex campus environments. Our LX4 module operates seamlessly on both Multimode (150m) and Single-Mode (2km) fibers using a Duplex LC connector. Utilizing four specific wavelengths (1270nm to 1330nm), it solves severe mixed-fiber routing challenges without requiring network engineers to swap out patch cords.
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Custom 40G QSFP+ Parallel SMF Module
Designed for advanced breakout applications and parallel single-mode routing. Unlike standard LC models, this specialized series utilizes an MPO/MTP connector on single-mode fiber (SM). Available in multiple exact configurations—including GR4/IR4 (2km), eSM4 (10km), and extended LR4 (20km)—it allows seamless 40G splitting into 4x10G streams for massive server farm deployments.
Custom 40G QSFP+ LR4 Module
Push the boundaries of standard metropolitan area networks. While standard LR4 optics max out at 10km, our heavily optimized Extended LR4 (1310nm) transceiver guarantees robust 40Gbps throughput over single-mode fiber for up to 30km. Features a standard LC interface and rigorous thermal management for stable inter-city telecommunication links.
Custom 40G QSFP+ ER4 Module
A specialized asset for long-haul core network aggregation. This module ensures absolute signal integrity across 40km of single-mode fiber without the need for intermediate optical amplifiers. Manufactured in our class-100k cleanrooms, every unit is 3D interferometer verified and live-switch tested to meet strict carrier-grade optical budgets.
Custom 40G QSFP+ ZR4 Module
The elite solution for extreme-distance provincial backbone connectivity. Capable of flawless 40Gbps transmission over a massive 80km distance, this highly specialized single-mode module utilizes premium laser arrays and ultra-sensitive receiver components. Hand-calibrated by our Wuhan engineering team to ensure zero-bottleneck performance across vast geographical spans.
Custom 50G SFP56 & QSFP28 Telecom Series
Deploying robust 50 Gigabit connectivity is critical for scaling next-generation 5G networks and alleviating enterprise core congestion. Utilizing advanced 1x50G PAM4 modulation, our specialized SFP56 and QSFP28 transceivers deliver carrier-grade bandwidth for fronthaul/midhaul infrastructure, instantly doubling your legacy 25G link capacity without laying new physical fiber.
💡 Bespoke Coding & 5G Fronthaul Optimization: 5G cell site deployments often demand extreme thermal tolerance and strict compatibility with telecom vendors like Ericsson, Nokia, and Huawei. We engineer carrier-grade customized solutions. Drawing on the expertise of 400-500 optical specialists across our 3 manufacturing plants, we precision-code, DSP-tune, and temperature-stress test every 50G SFP56 & QSFP28 MODULE to ensure seamless handshakes with your specific radio access network (RAN) hardware. contact us directly!
Custom 50G SFP56 Optical Transceivers
The absolute mainstream standard for 5G fronthaul and midhaul. Utilizing native 1x50G PAM4 technology in an ultra-compact footprint. Available in multiple reach variants from short-reach SR (100m) to long-haul ER (40km), seamlessly integrating with next-generation telecom routing hardware.
Custom 50G SFP56 BiDi Optical Transceivers
The ultimate solution for 5G cell site rollouts where dark fiber is severely constrained. This highly requested BiDirectional SFP56 module pushes 50Gbps over a single LC fiber strand, instantly halving your cabling requirements while maintaining carrier-grade PAM4 stability.
Custom 50G QSFP28 Optical Transceivers
Engineered for enterprise legacy upgrades and specific dual-lane (2x25G) architectures. We manufacture robust 50G QSFP28 modules in LR (10km) and ER (40km) configurations, providing a reliable, precision-coded bridge for core switches that lack native SFP56 ports.
Custom 50G QSFP28 BiDi Optical Transceivers
A highly specialized OEM configuration designed to maximize your existing physical infrastructure. It utilizes the standard QSFP28 form factor but transmits 50Gbps bidirectionally over a single-mode Simplex LC fiber, offering a unique upgrade path for high-density enterprise networks.
Your Trusted Global Fiber Partner
WolonFiber: Your Direct OEM/ODM Factory for 40G & 50G Telecom Solutions
Headquartered in the Wuhan Optical Valley, WolonFiber operates 3 specialized manufacturing facilities dedicated to enterprise core network upgrades and 5G fronthaul deployments. With a robust workforce of 400-500 optical experts, we engineer, rigorously test, and manufacture your complex 40G QSFP+ and 50G SFP56/QSFP28 transceiver architectures. We transform your demanding telecom blueprints into deployment-ready, carrier-grade realities at massive scale.
Carrier-Grade Thermal Testing
100% performance verified for harsh telecom environments. Every 40G and 50G module undergoes strict 3D interferometer end-face geometry inspection, extreme Environmental Stress Screening (-40°C to 85°C) specifically for outdoor 5G cell sites, and rigorous live-traffic simulations.
Advanced EEPROM Coding
Eradicate vendor lock-in in your core network. We execute precise, in-house EEPROM programming to guarantee seamless plug-and-play interoperability with elite telecom switches (Cisco, Huawei, Nokia, Ericsson). Fast-track your customized BiDi deployments with our agile R&D team.
Premium OEM Branding
Solidify your global market presence. We provide bespoke laser-engraved metal housings, custom pull-tab color coding for high-density rack management, tailored label printing, and secure ESD packaging—delivering a premium brand identity straight to your ISP clients.
Your 4-Step Path to 40G/50G Network Deployment
Technical Consultation
Engineer-to-engineer alignment focusing on your campus topologies, 5G fronthaul thermal constraints, optical budgets, and routing hardware needs.
Prototyping & Validation
Fast-tracked sample manufacturing featuring precise PAM4/DSP parameter validation against your target telecommunication hardware.
ISO Class 8 Mass Production
High-capacity manufacturing executed within our specialized cleanrooms, ensuring absolute optical consistency for major 5G rollouts.
Global Expedited Logistics
Secure anti-static (ESD) packaging and fully-tracked, expedited worldwide logistics, supplying operators across 80+ countries.
Ultimate 40G QSFP+ & 50G SFP56 Customization
Constrained by extreme outdoor environments or strict vendor lock-in? WolonFiber offers end-to-end OEM/ODM manufacturing tailored for your 5G fronthaul networks and enterprise core upgrades.
Need Bespoke 5G & Enterprise Connectivity?
Submit your exact 40G/50G network specs or compatibility requirements to our engineers. Benefit from direct factory pricing, strict QC, and rapid global delivery straight from our 3 specialized facilities.
Request a Custom QuoteBuying Guide: Choosing the Right 40G & 50G Optics
Upgrading your enterprise core or 5G cell sites requires rock-solid connectivity. Selecting the correct pre-tested QSFP+, QSFP28, or SFP56 module is critical for achieving zero-packet-loss transmission and optimizing your telecommunication budget.
1. MPO Multimode vs LC Single-Mode
Match your infrastructure interfaces. Choose 40G SR4 modules utilizing MTP/MPO interfaces for high-density, short-reach intra-rack connections (up to 150m over OM4). For campus or 5G fronthaul links, single-mode LC options (LR4/ER4) are essential for stable transmission spanning 10km to 40km.
2. SFP56 vs QSFP28 Form Factors
Understand your routing port requirements. SFP56 offers native 1x50G PAM4 modulation in an ultra-compact footprint designed for modern 5G radio units. Meanwhile, QSFP28 modules provide a dual-lane 50G upgrade path for legacy enterprise core switches that lack SFP56 ports.
3. Telecom Switch Compatibility
Carrier networks are unforgiving with hardware lock-ins. WolonFiber executes precise EEPROM programming, ensuring every custom 40G/50G module is recognized seamlessly by Cisco, Huawei, Nokia, Ericsson, and Arista core switches without unsupported hardware errors or DSP mismatches.
4. Solving Fiber Exhaustion with BiDi
Maximize existing physical infrastructure. Utilizing dark fiber is an expensive CAPEX. Our specialized 40G and 50G BiDi modules transmit and receive massive bandwidth over a single LC fiber strand, instantly doubling your 5G fronthaul network capacity without trenching new cables.
5. Commercial vs Industrial Temp
Assess your deployment environment. Standard commercial grades (0~70°C) suit climate-controlled enterprise server rooms. For outdoor 5G base stations, our rugged industrial PAM4 optical modules operate flawlessly and maintain laser stability in extreme environments from -40°C to 85°C.
6. Carrier-Grade Factory Testing
Network downtime costs ISPs millions. Manufactured by our dedicated workforce of 400-500 industry experts, every transceiver undergoes uncompromising 3D interferometer geometry inspection, dynamic thermal stress tests, and live-traffic optical BER validation.
Frequently Asked Questions
Find technical answers regarding our 40G/50G telecom transceiver architectures, 5G fronthaul deployments, and OEM capabilities.
The SFP56 utilizes native 1x50G PAM4 modulation within a single-lane, ultra-compact form factor, establishing it as the absolute standard for modern 5G fronthaul radio units. In contrast, the QSFP28 employs a dual-lane (2x25G) architecture; it is engineered to act as a reliable 50G bridge for legacy enterprise core switches that feature QSFP28 ports but lack dedicated SFP56 interfaces.
Yes. For unpredictable outdoor base stations and edge computing cabinets, WolonFiber manufactures ruggedized Industrial Temperature (I-Temp) modules. Engineered to operate flawlessly in extreme thermal environments ranging from -40°C to 85°C, these optics ensure your mobile network never experiences thermal-induced downtime.
Dark fiber scarcity is a major operational CAPEX challenge in urban telecom networks. We highly recommend our 40G and 50G BiDirectional (BiDi) transceivers. By transmitting and receiving massive payloads over a single Simplex LC fiber strand, they instantly double your existing cabling capacity without the immense cost of trenching new ground.
Hardware vendor lock-in is a frustration we actively eliminate. WolonFiber performs precise, in-house EEPROM firmware programming. We custom-code and live-test every transceiver to guarantee 100% plug-and-play interoperability with major telecommunication and enterprise switch vendors (including Cisco, Huawei, Nokia, Ericsson, and Arista) with zero compatibility errors.
The most seamless migration strategy utilizes our 40GBASE-SR4 or PLRL4 modules paired with MTP-to-LC breakout cables. This exact configuration allows you to split a single 40G QSFP+ switch port into four independent 10G connections, instantly quadrupling your Top-of-Rack (ToR) density while fully reusing your existing 10G server endpoints.
Absolutely. As a primary optical manufacturer, we deliver end-to-end OEM services. We can fully customize your 40G/50G transceivers with laser-engraved metallic housings, specific color-coded pull tabs for distinct routing identification, bespoke label printing, and secure branded packaging to elevate your enterprise ISP identity.
🔗 Complete Your Optical Link
Your SFP MODULE performs best with premium fiber infrastructure. Pair your custom transceivers with Wolon’s strictly tested, elite-grade LC/SC Fiber Patch Cables & Pigtails to ensure ultra-low insertion loss and zero-error connectivity across your entire network.
Compatible with Cisco, Huawei, H3C, ZTE, etc.
1.25G/2.5G MODULES custom
Compatible with Cisco, Huawei, H3C, ZTE, etc.
10G/25G/40G/ MODULES
custom
Compatible with Cisco, Huawei, H3C, ZTE, etc.
100G/200G/ MODULES
custom
Compatible with Cisco, Huawei, H3C, ZTE, etc.
400G/800g MODULES
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3/F, Yunqi Technology Port, Guanggu, Hongshan District, Wuhan City, Hubei Province, China