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Quality Nvidia AI Products &
400G/800G Optical Modules

Trusted 100G QSFP28, 25G SFP28, and 10G SFP Module manufacturer from Shenzhen, China. ISO9001 & RoHS certified.

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Who We Are

Topstar Technology Industrial Co., Limited is one of the leading manufacturers of fiber optic transceiver modules since 2006, located in Shenzhen — China's capital of technological innovation. We specialize in high-speed optical communication products for data centers, enterprise networks, and AI infrastructure.

Our product portfolio includes 100G QSFP28, 25G SFP28, 400G/800G optical modules, Nvidia AI network cards, and compatible transceivers for Cisco, Brocade, Arista, and Dell. All modules are MSA-compliant and rigorously tested for performance and reliability.

20+

R&D Engineers

200+

Factory Workers

5000m²

Manufacturing Facility

16+

Years in Industry

Optical Transceiver Modules

Our Premium Products

Explore our wide range of high-performance optical transceivers and AI networking hardware designed for data centers, cloud infrastructure, and enterprise networks.

25G SFP28 Module

25G SFP28 Module

  • Data Rate: 25G
  • Form-Factor: SFP28
  • Wavelength: 850nm
  • Distance: 100m MMF
  • Compatibility: Cisco SFP-25G-SR-S
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Nvidia AI Network Card

MCX713104AS-ADAT ConnectX-7

  • Type: Nvidia AI Network Card
  • Series: ConnectX-7
  • Interface: PCIe Gen4/Gen5
  • Speed: Up to 400Gb/s
  • Use Case: AI/ML, HPC
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100G QSFP28 LR4 Module

100G QSFP28 LR4 Module

  • Data Rate: 100G
  • Standard: 100GBASE-LR4
  • Distance: 10km SMF
  • Wavelength: 1310nm
  • MSA: QSFP28 MSA Compliant
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400G QSFP-DD Module

400G QSFP-DD LR8 Module

  • Data Rate: 400G
  • Form-Factor: QSFP-DD
  • Distance: 10km
  • Modulation: PAM4
  • Connector: LC Duplex
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10G SFP BIDI Module

10G SFP BIDI 80km Module

  • Data Rate: 10G
  • Distance: 80km
  • Wavelength: 1490nm/1550nm
  • Fiber: Single Mode
  • DDM: Yes, with DOM
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40G QSFP+ SR4 Module

40G QSFP+ SR4 Module

  • Data Rate: 40G
  • Standard: 40GBASE-SR4
  • Wavelength: 850nm
  • Distance: 150m MMF
  • Connector: MTP/MPO-12
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100G CWDM4 Module

100G CWDM4 QSFP28 Module

  • Data Rate: 100G
  • Standard: 100GBASE-CWDM4
  • Distance: 2km
  • Wavelength: 1310nm
  • MSA: CWDM4 MSA Compliant
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Finisar FTLF1432P3BCV

Finisar 32G SFP+ Module

  • Data Rate: 32G
  • Type: FC SFP+
  • Distance: 10km
  • Brand: Original Finisar
  • Model: FTLF1432P3BCV
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Advanced Manufacturing & Quality Control

Our 5000 square meter facility in Shenzhen is equipped with state-of-the-art production lines and automated testing systems. With over 200 skilled workers and 20 R&D engineers, we ensure every optical module meets strict performance and reliability standards.

  • ISO9001 & RoHS Certified
  • Full MSA Compliance
  • 100% Burn-in & DDM Testing
  • 3-5 Year Warranty
  • Fast Global Shipping
Factory Production Line Quality Testing Lab Engineer Testing Module Packaging
600+
Products Available
16+
Years Experience
100+
Global Clients
3-5Y
Warranty Period

Frequently Asked Questions

Are your optical modules compatible with Cisco, Arista, and Juniper?

Yes, all our transceivers are MSA-compliant and tested for full compatibility with major brands including Cisco, Arista, Juniper, Dell, HPE, and Brocade. We offer both compatible and original branded modules.

Do you provide DDM/DOM support?

Yes, all SFP, SFP28, QSFP28, and higher-speed modules support Digital Diagnostic Monitoring (DDM/DOM) for real-time monitoring of temperature, voltage, TX/RX power, and more.

What is your warranty policy?

We offer a 3 to 5-year warranty on all optical modules depending on the product type. Our warranty covers defects in materials and workmanship under normal use.

Can you customize modules for specific requirements?

Yes, we offer OEM/ODM services including custom labeling, programming, and firmware tuning for enterprise and data center deployments.

How long does shipping take?

We ship worldwide via DHL, FedEx, or UPS. Delivery typically takes 3–7 business days depending on destination. Express options are available.

Get In Touch

Need a quote or have technical questions? Visit our official website to contact our sales team directly.

Visit Official Website to Contact

Company: Topstar Technology Industrial Co., Limited

Address: 28 Yayuan Road, Wuhe Community, Bantian Street, Longgang District, Shenzhen, China

Work Time: 9:00–18:30 (Beijing Time, Mon–Fri)

Fax: 86-0755-82552969

Email: [email protected]

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