home products Optical Transceivers QSFP-DD Transceivers 400G 400GBASE-LR4 10km Gen 3 QSFP-DD Optical Transceiver
400GBASE-LR4 10km Gen 3 QSFP-DD Optical Transceiver
Coherent | Finisar

400GBASE-LR4 10km Gen 3 QSFP-DD Optical Transceiver

Manufacturer: Coherent | Finisar

Datasheet: FTCD4323E3PCL

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Product Detail

The FTCD4323E3PCL LR4 QSFP-DD transceiver modules are engineered for application in 400 Gigabit Ethernet links over a distance of up to 10km on single mode fiber. They adhere to the QSFP-DD MSA, QSFP28 MSA, 400G-LR4-10 Technical Specification Rev1.0 Sept 15, 2020, and certain sections of P802.3bs. Digital diagnostic features can be accessed through the I2C interface, as outlined by the QSFP28 MSA and Finisar Application Note AN-21xx.

400GBASE-LR4 10km Gen 3 QSFP-DD Optical Transceiver
FTCD4323E3PCL LR4 QSFP-DD transceivers are designed for 400 Gigabit Ethernet links on up to 10km of single mode fiber, with digital diagnostic functions available via the I2C interface.
Coherent | Finisar

Features & Benefits

  • Hot-pluggable QSFP-DD type 2 form factor
  • 8x50G PAM4 retimed 400GAUI-8 electrical interface
  • Supports 425Gb/s aggregate bit rate
  • Power dissipation
  • RoHS-6 compliant
  • Case temperature range of 0°C to +70°C
  • Single 3.3V power supply
  • Maximum link length of 10km on Single Mode Fiber (SMF)
  • Aligned with 100G Lambda MSA Group 400G-LR4-10 technical spec
  • 4x100Gb/s PAM4 serial lanes

Technical Specifications

ConnectorMPO (MTP12)
Data Rate (max)425 Gb/s
Distance10 km
High End Case Temperature (°C)70
Low End Case Temperature (°C)0
Protocol400G Ethernet Compliant
Voltage Supply3.3
Wavelength1310nm Band


Coherent | Finisar

Coherent Corp. is a global leader in materials, networking, and lasers for the industrial, communications, electronics, and instrumentation markets. The company is headquartered in Saxonburg, Pennsylvania. It was founded in 1971 to manufacture high-quality materials and optics for industrial lasers. Today, the company operates in more than 20 countries around the world. Coherent is focused on delivering innovations that fuel market megatrends while pursuing our mission of enabling the world to be safer, healthier, closer, and more efficient. Coherent empowers market innovators to define the future through breakthrough technologies, from materials to systems.

Learn about Coherent | Finisar

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