Custom 100G & 200G Solutions: QSFP28, QSFP56, QSFP-DD & CFP2 (Cloud, AI & DCI)
Scaling hyperscale cloud facilities, AI computing clusters, and Data Center Interconnects (DCI) demands more than just raw speed; it requires elite thermal management and zero-packet-loss signal integrity. WolonFiber manufactures strictly MSA-compliant 100G QSFP28 and 200G QSFP56, QSFP-DD, and heavy-duty CFP2 optical interconnects optimized for ultra-dense Spine-Leaf topologies and long-haul transport. Leveraging advanced PAM4 modulation and proprietary low-power DSP technology, our Wuhan facility delivers bespoke, carrier-grade 100Gbps and 200Gbps modules. Every transceiver is precision-coded and live-switch tested to guarantee flawless plug-and-play interoperability with NVIDIA (Mellanox), Arista, Cisco Nexus, Juniper, and elite white-box switches.
Custom 100G QSFP28 MODULE Series
Accelerate your hyperscale computing and core routing infrastructure. Engineered specifically for ultra-dense Spine-Leaf architectures and high-capacity Data Center Interconnects (DCI), our 100Gbps QSFP28 transceivers guarantee zero-packet-loss performance. Sourced directly from our advanced manufacturing floors, these modules feature superior thermal management and optimized optical budgets for the most demanding cloud environments.
💡 Factory Direct Customization & OEM Coding: Facing thermal constraints in high-density racks or strict vendor lock-in with Arista, Cisco, or Mellanox (Nvidia) switches? We provide comprehensive OEM & ODM services. Backed by 3 specialized factories and 400-500 optical experts, we precision-code, temperature-stress test, and live-verify every 100G QSFP28 MODULE to ensure exact integration into your core network.
Contact our engineers directly!
Custom 100GBASE-SR4 QSFP28 Module (mpo)
The absolute industry standard for high-density Spine-Leaf interconnects. Driving extreme sales volumes globally, this 850nm multimode transceiver utilizes an MTP/MPO-12 interface for up to 100m runs on OM4. We also offer specialized ESR4 configurations (300m reach) and Industrial-grade (-40°C to 85°C) thermal tolerances for harsh outdoor Edge computing sites.
Custom 100G QSFP28 CWDM4 Module
Custom 100GBASE-LR4 QSFP28 Module
Custom 100G QSFP28 Single Lambda Module
Custom 100G QSFP28 BiDi Module
Alleviate dark fiber exhaustion across your enterprise backbone. Our highly specialized 100G BiDirectional (BiDi) transceivers utilize a Simplex LC interface to transmit and receive over just one single-mode fiber strand. Available in custom engineering configurations supporting distances of 10km, 20km, 40km, and 80km, instantly doubling your existing fiber capacity.
Custom 100G QSFP28 SWDM4 / LX4 Module
Custom 100GBASE-ER4 QSFP28 Module
Custom 100G QSFP28 ZR4 Module
Custom 100G QSFP28 PSM4 Module
Custom 100G CFP & CFP2 Optical Transceivers
The heavy-duty industry standard for carrier-grade core transport networks. Unlike compact QSFP form factors, our robust CFP and CFP2 modules offer superior thermal dissipation for legacy telecom chassis. We provide specialized Dual-Rate EEPROM coding to support both 100G Ethernet and 112G OTU4 protocols, covering metropolitan distances from 10km to 80km.
Custom 100G QSFP28 SRBD Module
Custom 200G QSFP56 & QSFP-DD MODULE Series
Break through the bandwidth ceiling of your AI training clusters and next-generation cloud architectures. Utilizing cutting-edge 50G PAM4 modulation and advanced DSP (Digital Signal Processing) chips, our 200Gbps optical transceivers deliver unprecedented data throughput while strictly maintaining thermal efficiency. Available in both QSFP56 and backward-compatible QSFP-DD form factors, WolonFiber ensures your massive compute nodes operate flawlessly under peak workloads.
💡 Factory Direct Customization & OEM Coding: Facing severe thermal constraints in high-density AI clusters or strict vendor lock-in with NVIDIA Mellanox, Arista, or Cisco? We provide elite OEM & ODM services. Backed by 3 specialized manufacturing facilities and 400-500 optical experts, we precision-code, conduct rigorous PAM4 DSP stress tests, and live-verify every 200G QSFP56 & QSFP-DD MODULE to guarantee zero-packet-loss integration into your hyperscale network.
Contact our engineers directly!
Custom 200GBASE-SR4 QSFP56 Module
The native backbone for AI switch-to-GPU connectivity. Operating on 4 lanes of 50G PAM4 modulation via a standard MTP/MPO-12 interface, this multimode transceiver guarantees extreme low-latency 200Gbps transmission up to 100m. Pre-coded for seamless handshake with NVIDIA Mellanox Quantum/Spectrum switches.
Custom 200GBASE-SR8 QSFP-DD Module
Maximize port density while maintaining legacy protocol stability. Unlike the PAM4-based SR4, this high-density QSFP-DD module utilizes 8 independent lanes of 25G NRZ signaling. Ideal for achieving massive 200G throughput or enabling complex 8x25G breakout architectures using an MPO-24/MPO-16 interface.
Custom 200GBASE-DR4 QSFP56 Module
Engineered for massively scalable Spine-Leaf topologies requiring single-mode reach. This parallel 200G module transmits over an MPO-12 single-mode interface for up to 500m. It serves as the ultimate high-speed breakout solution, splitting a 200G port into four independent 50GBASE-DR connections for distributed server racks.
Custom 200GBASE-FR4 QSFP56 Module
The dominant cost-efficiency standard for 200G Hyperscale DCI. Leveraging heavily optimized CWDM4 wavelengths and proprietary low-power DSP technology, this module pushes 200Gbps across standard Duplex LC single-mode fiber for 2km. Drastically reduces core switch power consumption compared to traditional multi-fiber solutions.
Custom 200GBASE-LR4 Series
Uncompromising bandwidth for metropolitan area networks (MAN). Available in both QSFP56 and QSFP-DD footprints, this series utilizes stable LAN-WDM lasers to achieve reliable 10km reach over single-mode LC fiber. We also offer specialized 2x100G (2*LR4) QSFP-DD configurations for customized dual-link routing redundancy.
Custom 200GBASE-ER4 Extended Transport
Carrier-grade long-haul transport manufactured for provincial telecom backbones. Capable of 40km single-mode transmission without intermediate optical amplifiers. To match diverse hardware environments, WolonFiber builds these extreme-reach modules in multiple form factors, including standard QSFP56, high-density QSFP-DD, and legacy CFP2 coherent-ready housings.
Custom 200GBASE-ER4 CFP2 Module
The heavy-duty standard for core optical transport networks (OTN). Unlike compact QSFP form factors, this specialized 200G CFP2 ER4 transceiver delivers superior thermal dissipation and power handling capabilities required by legacy telecom chassis. Engineered to push 200Gbps across 40km of single-mode fiber, it is the ultimate OEM solution for carriers upgrading massive metropolitan networks without replacing their existing hardware infrastructure.
Your Trusted Global Fiber Partner
WolonFiber: Premium OEM/ODM Manufacturer for Cloud & AI Optics
Located in China’s Optical Valley, WolonFiber powers the world’s most demanding data centers. Backed by three cutting-edge production facilities and a dedicated engineering team of over 400 professionals, we specialize in high-capacity 100G and 200G optical interconnects (QSFP28, QSFP56, QSFP-DD, and CFP2). We turn complex DCI requirements and hyperscale network designs into reliable, mass-produced reality.
AI-Grade Quality & PAM4 Validation
Every high-speed module is subjected to uncompromising quality control for dense Top-of-Rack environments. We utilize 3D interferometry for end-face geometry, perform dynamic thermal stress testing, and execute rigorous DSP/PAM4 live-traffic validation to guarantee zero signal degradation in AI clusters.
Advanced EEPROM Coding & Agility
We eliminate hardware restrictions in hyperscale networks. Our proprietary EEPROM programming ensures native, error-free compatibility with major AI switches, including NVIDIA (Mellanox), Arista, Juniper, and Cisco Nexus. Deploy your CWDM4 or BiDi architectures faster with our responsive R&D support.
End-to-End White-Label Solutions
Build your brand with our comprehensive OEM services. From customized laser-etched metal housings and specific pull-tab color coding for massive rack management, to personalized labeling and anti-static packaging—we deliver products that elevate your corporate identity.
How We Deliver Your Hyperscale Optical Hardware
Hyperscale Network Consultation
Collaborative engineering discussions focused on your specific Spine-Leaf architectures, power consumption limits, and core switch compatibility protocols.
Custom DSP Tuning & Prototyping
Rapid prototype development with fine-tuned EEPROM coding and DSP parameters, strictly validated against your designated high-performance networking equipment.
High-Volume Cleanroom Manufacturing
Scalable production within our Class-100k dust-free facilities, guaranteeing flawless optical performance and comprehensive batch traceability for massive AI deployments.
Secure Global Logistics
Professionally packaged in ESD-safe materials and dispatched via expedited, fully-tracked shipping networks to data center operators worldwide.
Elite 100G & 200G Optical Interconnect Engineering
Overcoming thermal bottlenecks in high-density AI clusters? WolonFiber provides dedicated OEM manufacturing tailored for hyperscale Data Center Interconnects (DCI) and ultra-dense Spine-Leaf architectures.
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Precision EEPROM flashing optimized specifically for NVIDIA (Mellanox), Arista, and Juniper hardware, eliminating vendor lock-in for data center operators.
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Advanced thermal pad engineering and low-power DSPs designed to prevent overheating in densely packed Top-of-Rack (ToR) 100G/200G switch environments.
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Utilizing cutting-edge PAM4 modulation for QSFP56 and coherent digital signal processing for CFP2-DCO to maximize AI cluster throughput and minimize latency.
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Custom-tuned EML lasers enabling massive 100Gbps/200Gbps bandwidth across 40km, 80km, and beyond for critical cross-facility Data Center Interconnects.
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Enhance your corporate identity with laser-etched customized housings, tailored pull-tab color coding, and secure ESD packaging for large-scale integrators.
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Supporting advanced MPO-12 and MPO-24 to LC breakout configurations (e.g., splitting a 200G port into 4x50G) for highly scalable server rack distribution.
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Hardware fully configurable for standard IEEE Ethernet applications or 112G OTN framing protocols, bridging the gap between data centers and telecom backbones.
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Every hyperscale module passes strict 3D interferometer checks, dynamic thermal aging, and live-switch traffic simulation before mass shipment.
Need Bespoke Cloud & AI Connectivity?
Submit your exact 100G/200G 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.
Modern state-of-the-art factory
TECHNICAL SUPPORT
clean and intelligent workshop
Professional staff
Purchasing Guide: Selecting 100G & 200G Hyperscale Optics
Scaling AI architectures requires precision. Choosing the correct QSFP28, QSFP56, QSFP-DD, or CFP2 transceiver ensures maximum throughput, zero-packet-loss, and optimal power efficiency for your massive facility.
1. Intra-Rack vs Cross-Facility Links
Define your topology clearly. For switch-to-switch links under 100m, MPO-based SR4/SR8 modules are highly efficient. However, for connecting separate data halls (2km to 10km), single-mode LC variants like CWDM4, LR4, or FR4 are mandatory for stable transmission.
2. Navigating QSFP56 vs QSFP-DD
Select the right form factor. QSFP56 relies on 4 lanes of 50G PAM4, perfect for native 200G ports. In contrast, QSFP-DD utilizes 8 lanes of 25G NRZ, offering superior capabilities for complex 8x25G server breakout designs and backward compatibility.
3. The Importance of PAM4 & FEC
Unlike legacy 40G, pushing 100G Single Lambda or massive 200G bandwidth requires advanced PAM4 modulation. Ensure your target switches (like Arista or Mellanox) have Forward Error Correction (KP4 FEC) enabled to maintain absolute link stability.
4. When to Use DACs and AOCs
Transceivers aren’t always necessary for adjacent equipment. For ultra-short Top-of-Rack connections (1-5m), 100G/200G Direct Attach Copper (DAC) minimizes latency and power. Active Optical Cables (AOC) provide pre-terminated, lightweight links up to 30m.
5. Avoiding AI Switch Lock-In
Tier-1 AI switches can be restrictive. Partnering with a manufacturer that provides custom EEPROM coding guarantees your optics will initialize perfectly in NVIDIA, Juniper, or white-box environments without generating unsupported hardware logs.
6. Verifying Optical Integrity
In hyperscale deployments, failures are catastrophic. Insist on factory-direct optics that have passed rigorous 3D geometry tests, live DSP parameter tuning, and extreme thermal cycling to handle the heat of fully populated high-density chassis.
Frequently Asked Questions
Find quick answers to the most common questions about our services and solutions.
What is the difference between 200G QSFP56 and 200G QSFP-DD optical modules for data centers?
A: Both deliver 200Gbps, but their architectures differ. The 200G QSFP56 transceiver utilizes 4 lanes of 50G PAM4 DSP modulation, making it the standard for native 200G AI switches. The 200G QSFP-DD optic, utilizing 8 lanes of 25G NRZ, provides excellent backward compatibility with legacy 100G QSFP28 ports and supports highly complex 8x25G high-density server breakout configurations in cloud networks.
Are your custom 100G QSFP28 and 200G QSFP56 transceivers compatible with NVIDIA (Mellanox) and Arista AI switches?
A: Yes. Avoiding vendor lock-in is crucial for hyperscale cloud facilities. As a direct OEM/ODM optical module manufacturer, WolonFiber performs custom in-house EEPROM programming and rigorous DSP tuning. This guarantees our third-party 100G/200G optics deliver 100% plug-and-play compatibility with elite data center hardware, including NVIDIA (Mellanox), Arista, Juniper, and Cisco Nexus core switches, completely eliminating unsupported hardware errors.
Is KP4 FEC (Forward Error Correction) mandatory for 100G Single Lambda and 200G PAM4 optics?
A: For legacy 100G NRZ modules (like the 100GBASE-LR4 or CWDM4), FEC is generally optional but recommended. However, for any next-generation optical interconnect utilizing PAM4 modulation (such as 100G Single Lambda QSFP28 and 200GBASE-SR4/FR4 QSFP56), enabling KP4 FEC on your host switch is strictly mandatory to correct bit errors and ensure zero-packet-loss transmission in Spine-Leaf topologies.
Can I use 100G/200G MPO optical transceivers for high-density server breakout applications?
A: Absolutely. We manufacture MTP/MPO-based multimode and single-mode transceivers specifically engineered for Top-of-Rack (ToR) distribution. Utilizing an MPO-to-LC breakout cable, you can efficiently split a 100G QSFP28 port into 4x25G SFP28 server connections, or a 200G QSFP56 port into 4x50G SFP56, maximizing your switch port density and reducing data center cabling clutter.
What long-haul optical transceivers do you provide for Data Center Interconnects (DCI)?
A: For cross-facility and metropolitan DCI links utilizing dark fiber, we offer specialized 100GBASE-ER4 and 100GBASE-ZR4 QSFP28 single-mode modules (reaching up to 40km, 80km, or 100km) and heavy-duty 100G/200G CFP2 coherent transceivers. These utilize premium EML lasers and APD/PIN receivers to push massive bandwidth over long distances without requiring complex intermediate optical amplification.
How does your factory test 100G/200G hyperscale optical hardware for high-heat environments?
A: 100G/200G transceivers generate significant heat. To prevent catastrophic network downtime, every WolonFiber module produced in our Wuhan Class-100k cleanroom undergoes extreme dynamic thermal stress testing to simulate fully populated, high-temperature AI computing clusters. Combined with 100% 3D interferometer end-face testing and live-traffic BERT validation, we ensure carrier-grade stability under maximum load.
Do you offer support after project completion?
Yes, we offer ongoing support and maintenance services to ensure your solution remains effective.
Can I see examples of your previous work?
Absolutely! Visit our portfolio page to see case studies and examples of our work.
How do I contact customer service?
You can reach our customer service team via email, phone, or live chat on our website.
🔗 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.
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