PHILISUN – Optical Connectivity Expert
PHILISUN is dedicated to delivering unmatched quality, reliability, and innovation in fiber optics. Our fully integrated system of MPO/MTP cabling and high-speed 400G/800G optical transceivers is designed to exceed performance standards for modern data centers and HPC networks.



Hot Products
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100G QSFP28 to 4×25G SFP28 Active Optical Cable(AOC)
Compliant with theSFF-8436 QSFP28 MSA standard
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100G QSFP28 to QSFP28 Active Optical Cable (AOC)
Compliant with QSFP28 MSA standard
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100G SFP-DD to SFP-DD Active Optical Cable (AOC)
Compliant with the SFF-8432 SFP-DD MSA standard
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10G SFP+ to SFP+ Active Optical Cable (AOC)
Compliant with the SFF-8431 MSA standard
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200G QSFP-DD to 2×100G QSFP28 Active Optical Cable(AOC)
Compliant with the SFF-8436 QSFP-DD MSA standard
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200G QSFP-DD to QSFP-DD Active Optical Cable (AOC)
Compliant with theSFF-8436 QSFP-DD MSA standard
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20+ Years of Focusing on Customer Needs
Data Center
We provide high-performance, low-latency data center connectivity solutions to meet data storage, processing, and management needs.
- All fiber jumpers use low-loss connectors, are 100% tested, and are stable, reliable, and traceable in quality
- Optical modules and AOC/DAC cables adopt advanced packaging technology and chip design
- Covering connection speeds from 155M to 1.6T, optical modules are fully compatible and undergo rigorous compatibility testing with mainstream brands of switches, servers, and network cards
High-Performance Computing Network
Delivering low-power, high-speed connectivity solutions for high-performance computing networks.
- Fully supports NVIDIA® InfiniBand networks
- Mass-producing 400G-1.6T high-performance optical modules
- Our products undergo full-link optimization from chips to firmware to meet the demands of latency-sensitive scenarios such as AI/ML training and financial trading, accelerating mission-critical applications
Enterprise LAN
Providing enterprises with a consistently stable network environment.
- Offering 10 Gigabit and even higher bandwidth to the desktop, meeting bandwidth growth demands for the next 5-10 years
- Effortlessly covering large enterprise campuses, dispersed office buildings, and large factory plants without the need for repeaters, enabling centralized management from the core data center
- Optical modules and DAC/AOC cables undergo rigorous compatibility testing and aging processes to ensure long-term stable operation in complex environments
- High-density optical distribution boxes and pre-connection systems provide clear and intuitive port identification and convenient patch cord management, ensuring a tidy and organized cabinet layout
5G Carrier Network
We deliver high-bandwidth, low-latency 5G carrier network solutions for dense deployments and reliable connectivity.
- Providing armored sheath reinforced fiber optic cables to enhance resilience against harsh conditions
- Customized lengths from 30 to 500 meters available to supplement requirements
- Passive WDM solves fiber shortage challenges
- Indoor coverage enhances 5G signal quality and stability

Proven Reliability
Established in Shenzhen, Guangdong, in 2001, PHILISUN is a professional manufacturer specializing in a comprehensive range of fiber optical components and devices. Our portfolio includes fiber optical cable, connectors, optical and electrical network cabling, high-speed transmission devices, and more. We are committed to providing individualized solutions to our clients at all times.
Expertise & Quality Assurance
With more than 24 years of experience, PHILISUN has developed deep expertise in R&D and manufacturing, supported by a focus on the continuous improvement of production technology. We utilize advanced ERP and MES management systems to ensure we deliver high-efficiency, traceable, and customized services.
Production Footprint
To support our global client base, PHILISUN owns production lines in both the Pearl River Delta and the Yangtze River Delta. Furthermore, we maintain long-term cooperation with many well-known manufacturers both domestically and internationally.
Blogs

200G HDR Cabling Guide: Should You Choose AOC or DAC for InfiniBand?
Choosing between AOC and DAC for 200G HDR? Explore performance, distance limits, reliability, and TCO to optimize your InfiniBand deployment.

Choosing Bulk Fiber Optic Cable Suppliers: A Quality Control Checklist
Looking for bulk fiber optic cable suppliers? Don't compromise on quality. Learn how to vet suppliers based on Interferometry testing, IL/RL reports, and LSZH/CMP compliance. Partner with PHILISUN for reliable volume orders.

How Far Can Your QSFP-DD 400G Network Go? Comparing LR4 and ZR4
A direct comparison of the maximum distance capabilities of QSFP-DD LR4 (10km) and ZR4 (80km+) modules for various DCI and Metro applications.



