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F-tone 400GBASE-SR8 QSFP-DD PAM4 850nm 100m DOM Optical Transceiver

F-tone 400GBASE-SR8 QSFP-DD PAM4 850nm 100m DOM Optical Transceiver

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Part Number: QSFPDD-SR8-400GFM

Generic Compatible 400GBASE-SR8 QSFP-DD PAM4 850nm 100m DOM Optical Transceiver Module (MMF, 850nm, 100m, MTP/MPO, DOM)


The 400GBASE-SR8 module supports link lengths of up to 100m over multimode fiber (MMF) with MTP/MPO-16 connector. It is compliant to IEEE 802.3bs protocol and 400GAUI-8/CEI-56G-VSR-PAM4 standard. The 400 Gigabit Ethernet signal is carried over eight wavelengths. Multiplexing and demultiplexing of the eight wavelengths are managed within the device.
Part Number QSFPDD-SR8-400G Vendor Name F-tone
Form Factor QSFP-DD Max Data Rate 400Gbps
Wavelength 850nm Max Cable Distance 70m@OM3/100m@OM4
Connector MTP/MPO-16 Media MMF
Transmitter Type VCSEL 850nm Receiver Type PIN
Electric Signal 8x50G Optical Signal 8x50G
DDM/DOM Supported Commercial Temperature Range 0 to 70°C (32 to 158°F)
TX Power -6~4dBm Receiver Sensitivity <-7.9dBm
Power Consumption <10W Extinction Ratio 3dB
Modulation Format PAM4 DSP TX and RX
Transmitter and Dispersion Eye Closure Quaternary 4.5dB Powerbudget 1.9dB
Packaging Technology COB (chip on board) Packaging FEC Function* Not Supported
Protocols QSFP-DD MSA Compliant Application 400GBASE Data Center
Please Note:
* FEC in host is required to be turned on to increase the reliability of transmission.

Product Tree

Direct Connection for 400GBASE-SR8 QSFP-DD Transceivers

Quality Testing Program

Quality Certifications

Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.

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.

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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.

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