High-Quality 40G QSFP SR4 Manufacturer & Factory

Leading the Era of 40Gbps Connectivity with Professional Fiber Optic Solutions Since 2012

The Global Status of 40G QSFP SR4 Technology

In the rapidly evolving landscape of telecommunications, the 40G QSFP SR4 (Quad Small Form-factor Pluggable, Short Range) transceiver remains a cornerstone for high-bandwidth data transmission. As a premier 40G QSFP SR4 manufacturer, we have witnessed the global shift from legacy 10G networks to robust 40G architectures in enterprise data centers, campus networks, and high-performance computing (HPC) environments.

The global demand for 40G QSFP SR4 is driven by its efficiency in short-range applications (up to 100m over OM3 or 150m over OM4 multimode fiber). While 100G and 400G technologies are emerging, 40G continues to provide the most cost-effective upgrade path for organizations looking to scale their internal bandwidth without a complete infrastructure overhaul.

Industry Trends & Global Procurement Needs

AI

AI & Big Data Drive

The explosion of Artificial Intelligence (AI) and Machine Learning (ML) requires massive parallel processing. 40G QSFP SR4 modules are essential for connecting server clusters in these compute-intensive environments.

SDN

Software-Defined Networking

Modern enterprises are adopting SDN to increase agility. Our 40G modules provide the reliable physical layer needed for flexible, software-controlled traffic management.

ECO

Energy Efficiency

Global procurement teams now prioritize "Green Data Centers." Our factory focuses on low-power consumption designs, reducing the carbon footprint of large-scale deployments.

KOCENT OPTEC LIMITED: Your Trusted Partner

Kocent Optec Limited, established in 2012 in Hong Kong as a hi-tech communication enterprise, stands as one of China's leading fiber optic termination product manufacturers and solution providers. We are dedicated to developing and manufacturing products ranging from passive to active categories for telecommunication networks, enterprise networks, and data centers.

By leveraging our extensive experience and excellent production capacity gained over the years, we magnify the outcome for our valuable customers, which ultimately expands their core competencies and helps them outperform competitors. We place emphasis on customer collaboration and define ourselves as your valuable partner in fiber optic connection solutions.

13+

Years of Expertise

100%

Tested Quality

50+

Countries Served

24/7

Technical Support

Advanced Factory & Production Capabilities

Ensuring 100% reliability through scientific manufacturing methods.

With more than 13 years of experience in manufacturing telecommunication fiber optic products, we strictly follow industry standards. Every product is tested and inspected before shipment. Our main product catalog includes:

  • Data Center Solutions: MTP MPO Patch cord / Patch Panel, SFP/QSFP, AOC/DAC.
  • FTTA Solutions: Tactical fiber optic cable, CPRI patch cord, FTTA Terminal Box.
  • Transceivers: 40G QSFP SR4, 100G QSFP28, 10G SFP+.
  • Passive Components: PLC Splitters, Fiber Adapters, Attenuators.

MTP MPO Production Line

PLC Splitter Production Line

SFP QSFP Production Line

FDB and FOSC Machine

OEM/ODM Customization for Global Brands

1

Full Compatibility

Our QSFP and SFP modules are compatible with Cisco, Huawei, ZTE, H3C, Juniper, HP, Dell, and many more.

2

Tailored Engineering

Optical design, mechanical layout, PCB design, and firmware customization to meet specific data center requirements.

3

Branding & Labeling

Custom labels, logos, and packaging options for wholesale partners and distributors.

Why Choose Our Chinese Factory?

As a leading 40G QSFP SR4 factory based in the heart of China's tech hub, we offer several competitive advantages:

Supply Chain Efficiency

Proximity to raw material suppliers allows us to maintain a stable inventory of high-grade lasers and chips, ensuring rapid turnaround times.

Rigorous Testing

Utilizing high-end equipment (Anritsu, Keysight), we perform 100% testing on BER, Eye Diagrams, and Compatibility to ensure zero-failure deployments.

Cost-to-Performance Ratio

We provide Tier-1 quality at factory-direct pricing, allowing our global clients to maximize their ROI on infrastructure upgrades.

KCO Fiber welcomes all customers to develop original equipment manufacturing (OEM) partnerships. We are committed to providing second-to-none contract manufacturing services, teaming up with our customers to develop best-in-class fiber optical products.

Localized Application Scenarios

Enterprise Data Centers

Connecting core switches to aggregation layers in medium-sized enterprises. The SR4 module's 4-lane 10G structure makes it ideal for 4x10G breakout configurations.

Cloud Provider Infrastructure

Providing the backbone for localized cloud nodes where high-speed interconnects (40Gbps) are necessary between racks within the same facility.

Financial Trading Networks

Where low latency is paramount. Our SR4 modules over OM4 fiber ensure minimal signal delay for high-frequency trading environments.

University Campus Backbones

Upgrading campus-wide networks from 10G to 40G to support modern digital learning, research data transfers, and campus-wide Wi-Fi 6/7 backhaul.