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QSFP-DD-200G-ER4 200G QSFP-DD ER4 PAM4 LWDM4 40km LC SMF FEC Optical Fiber Transceiver

QSFP-DD-200G-ER4 200G QSFP-DD ER4 PAM4 LWDM4 40km LC SMF FEC Optical Fiber Transceiver

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Part Number: QSFP-DD-200G-ER4-FM

200G QSFP-DD ER4 PAM4 4 LAN WDM Lanes MUX/DEMUX Design 40km Optical Transceiver Module (1295.56nm 1300.05nm 1304.58nm 1309.14nm LC SMF 40km with FEC DDM)

This QSFP-DD-200G-ER4 is a hot-swapping, QSFP-DD, 200GBASE-ER4 Optical Transceiver Module. It provides up to 40km transmission on single mode fiber (SMF) with FEC using a LC duplex connector. It is compliant with the QSFP-DD MSA and IEEE 802.3bs.

Product Details

F-tone Part Number QSFP-DD-200G-ER4 Vendor Name F-tone
Form Factor QSFP-DD Max Data Rate 212.5Gbps
Wavelength 1295.56nm, 1300.05nm, 1304.58nm, 1309.14nm Max Distance 40km
Modulation Format PAM4 Host Required FEC
Connector Duplex LC Voltage Supply 3.3V
Cable Type SMF DDM Support Yes
Transmitter Type EML LWDM4 Receiver Type PIN
TX Power -0.1~+5.6dBm Receiver Sensitivity < -14.1dBm
Operation Temperature 0 to 70°C (32 to 158°F) Maximum Power < 12W
Protocols QSFP-DD MSA, IEEE 802.3bs Application 5G Network, 200G Ethernet, Enterprise Networking



Quality Assurance

Excellent quality is the foundation of F-tone's survival and development. Our operation team is an expert with many years of experience in the optical communication industry. Our manufacturers are first-class manufacturers in the industry. Many of them have the qualification of OEM for first-class system equipment manufacturers.

Quality Certification

We control the quality of our products, including our strict qualification of manufacturers, quality control process and production technology, and compliance with certification and safety standards. At present, our products meet the industry standards and mainstream quality certification, such as ISO 9001, CE, RoHS, FCC, etc.


This product belongs to F-tone Networks' optical components product line. For detailed specifications, please contact our sales team. Thank you!
Important Notice:
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.

Power and Wavelength Testing

Test the signal delivering strength and wavelength, to ensure the signal decoding capacity of the receiver, and the wavelength remains consistent from the transmitter to the receiver.

Power and Wavelength Testing

Traffic Testing

Test the bit error rate and packet loss rate, to make them meet the corresponding standards and ensure the performance of transceivers.

Traffic Testing

Optical Performance Testing

Test the transceivers' eye diagram situation, receiving sensitivity, extinction ratio, wavelength, light-emitting, light-receiving, current and voltage, to ensure the signal quality, stability and reliability of the transmission.

Optical Performance Testing

End Face Testing

Check the end face of the transceivers and keep them clean for more stable data transmission, better performance, and durability.

End Face Testing

Various Switch Tests

Every module is quality tested for compatibility in the multi-brand switches environment, guaranteeing flawless operations.

Various Switch Tests

About F-tone Networks

F-tone Networks is now a world leader in development of optical transceivers and provide a wide range of high-speed optical solutions for optical communication networking, especially for AI, Data Center, enterprise data networking, Industry, aerospace, mining, shipbuilding, railway, metro, long haul transport networking, and mobile access networking applications
F-tone Networks invested in foundational photonics technologies and extensive product development and engineering with global presence in many area also.