Established in 2012 in Hong Kong as a high-tech communication enterprise, Kocent Optec Limited has emerged as one of China's premier fiber optic termination product manufacturers and end-to-end transceiver solution providers.
We are dedicated to developing and manufacturing state-of-the-art optical communication solutions ranging from passive components to active transceivers for telecommunication networks, hyperscale data centers, and modern enterprise systems. By combining over 13 years of technical excellence with mature scientific production frameworks, we empower our global clients to maximize bandwidth while streamlining installation costs.
Unlocking high-bandwidth efficiency with multi-lane VCSEL arrays and MPO/MTP physical connectivity.
The QSFP28 SR4 module integrates four parallel lanes operating at 25.78125 Gbps. Utilizing vertical-cavity surface-emitting laser (VCSEL) arrays at 850nm, it guarantees power-efficient short-reach transmission over multimode fiber.
Designed with standard 12-fiber MPO/MTP male connector ports. Utilizing the outer 4 lanes for transmission and the remaining outer 4 lanes for reception, this architecture ensures high alignment precision and minimal insertion loss.
Digital Diagnostic Monitoring (DDM/DOM) via the I2C interface allows network administrators to view live statistics on optical output power, receiver input power, laser bias current, module temperature, and voltage.
| Parameter / Specification | Operational Values (Standard SR4) | Kocent Optec OEM Custom Standard |
|---|---|---|
| Form Factor | QSFP28 (Quad Small Form-factor Pluggable 28) | Fully MSA Compliant (SFF-8665 / SFF-8636) | Data Rate | 103.125 Gbps (4x 25.78 Gbps) | Up to 112 Gbps for OTU4 customization |
| Wavelength | 850nm Nominal | Ultra-stable VCSEL Arrays |
| Fiber Link Distance | 70m on OM3 / 100m on OM4 | Extended-reach screening available (up to 150m OM4) |
| Power Consumption | < 2.5 Watts | Low-Power Design (< 1.8W typical) |
| Operating Temperature | 0°C to 70°C (Commercial Class) | Industrial temperature variants (-40°C to 85°C) |
Leveraging our mature production capacity, we amplify results for our OEM and ODM clients, expanding their market competitiveness. We view ourselves as your dedicated partner in fiber optic connection solutions, transforming our high-efficiency manufacturing capabilities into your corporate advantages.
Maximizing short-distance fiber networks across high-throughput physical infrastructures.
For spine-and-leaf switches where millions of computations take place, QSFP28 SR4 modules bridge intra-rack and inter-rack connectivity over high-speed OM3 or OM4 multimode ribbon cables.
Financial transaction engines require minimum latency. Utilizing optical transceivers with high-speed serial links over multimode fiber guarantees packet delivery without thermal overhead or signal jitter.
For corporate offices, campus networks, and distributed sites needing local network aggregation, our QSFP28 SR4 modules integrate with legacy patch panels and switches to form a reliable 100G backbone.
With more than 13 years of expertise in manufacturing optical solutions, we strictly adhere to rigorous fiber optic industry protocols. Utilizing mature scientific procedures, we verify that 100% of our products undergo full functional testing and inspection before they leave our factory.
Every transceiver module is loaded into our automated test beds where digital optical parameters are verified. We validate eye diagrams, bit error ratios, and system compatibility against target switch firmware, reducing field failures to virtually zero.
Through years of commitment to engineering quality, Kocent Optec has developed strong relationships with leading tier-1 telecom operators and system integrators worldwide.
Our OEM and ODM optical products are qualified in telecom tenders and meet strict quality criteria. We support deployments in East Asia, Southeast Asia, the Middle East, Europe, South America, North America, and Africa.
A transparent guide to understanding factors that influence OEM pricing for volume orders.
| Order Tier (Qty Units) | Indicative Price Range (USD/Unit) | Custom Services Included | Production Lead Time |
|---|---|---|---|
| 1 - 50 Units | Contact for Quote | Standard compatibility coding (Choice of 1 major brand) | 1 - 3 Days |
| 51 - 200 Units | Volume Discount Tier 1 | EEPROM Custom coding + Custom retail labelling | 3 - 5 Days |
| 201 - 1000 Units | Volume Discount Tier 2 | EEPROM Coding + Laser print customized serials + Independent testing reports | 5 - 10 Days |
| 1000+ Units (Enterprise Bulk) | Wholesale Direct Contract | Dedicated engineering validation + Direct MSA raw telemetry access + Fully customized packaging | Scheduled Delivery (2-3 weeks) |
Analyzing future physical layer transitions and the path toward silicon photonics.
As optical designs move from 100G NRZ toward higher densities, PAM4 technology packs twice as many bits per symbol, forming the building blocks of 400G (using QSFP-DD SR8 or FR4) and 800G connectivity.
Future enterprise architectures will integrate optical engines directly onto the silicon switch substrate (Co-Packaged Optics - CPO). This reduces channel resistance and lowers power usage per gigabit.
Scaling up requires minimizing the carbon footprint of big networks. Modern transceivers use low-power microcontrollers and upgraded cooling options to lower total operational overhead.
To support international deployments, Kocent Optec guarantees compliance across global regulatory frameworks. All standard modules undergo CE, FCC, RoHS, and REACH certification, ensuring safety and compliance across global jurisdictions.
Clear answers to common questions about deployment, physical infrastructure, and ordering.