400G QSFP-DD FR4 2km

  • Using hot-pluggable QSFP-DD package
  • Full-duplex integrated transceiver module
  • EML transmitter and PIN receiver
  • Compliant with IEEE 802.3bs, SFF-8636, SFF-8679, and QSFP-DD MSA Ethernet standards
  • Maximum power consumption less than 12W
  • Built-in Digital Diagnostics Monitoring (DDM)
  • Power supply voltage 3.3V
  • Compliant with RoHS environmental standards (lead-free)
  • Class 1/1M compliant product, meets IEC60825-1 requirements
  • Meets Telcordia (Bellcore) GR-468-CORE reliab
Category： ,

Warranty : 30-Day Free Return, 3-Year Free Replacement, 5-Year Warranty, Lifetime After-sales Technical Support.

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Product Model QDD-400G-FR4 Vendor Name Walsun
Form Factor QSFP-DD Data Rate 425Gbps
Wavelength 1310nm Distance 2km
Connector LC Duplex Cable Type SMF
Transmitter Type EML Detector Types PIN
TX Power -3.3~3.5dBm Receiver Sensitivity < -7.3dBm
Power Consumption ≤12W Operation Temperature 0~70°C
DDM Support EMC Support
Modulation PAM4 CDR TX & RX with built-in CDR
Protocols IEEE 802.3bs、SFF-8636、SFF-8679、 QSFP-DD MSA、CPRI, eCPRI

Q: What are the common types of 400G QSFP-DD optical modules in the market?

A: The common types of 400G QSFP-DD optical modules in the market include QSFP-DD SR8, QSFP-DD DR4, QSFP-DD FR4, QSFP-DD FR8, QSFP-DD LR4, QSFP-DD LR8, and QSFP-DD ER8 optical modules.

Q: What are the application scenarios of Walsun 400G QSFP-DD optical modules?

A: 400G QSFP-DD optical modules are typically used in scenarios with high bandwidth requirements such as internal connections within data centers, interconnections between data centers, and connections between network equipment.

Q: Can an OSFP optical module be used on one end of a 400G link while a QSFP-DD optical module is used on the other end?

A: Yes, it can. OSFP and QSFP-DD refer to the physical size of the optical modules. As long as the products conform to the same protocol standard specifications (such as both ends of the link being 400G-LR4 or 400G-FR4), OSFP and QSFP-DD optical modules can be compatible with each other.

Q: Can a 400G OSFP optical module be used in a QSFP-DD port?

A: No, it cannot. OSFP and QSFP-DD optical modules differ in physical size and connector interfaces, thus they are not compatible.

Q: What are the advantages and disadvantages of OSFP and QSFP-DD optical modules?

A: OSFP’s size cannot accommodate some electro-optical interfaces. QSFP-DD is based on the QSFP form factor and includes an additional row of electrical pins. Therefore, QSFP-DD optical modules can effectively downwardly compatible with 40G and 100G QSFP optical modules, and are also compatible with QSFP28 optical modules. However, in terms of thermal performance, OSFP optical modules integrate heat sinks inside the module housing and have a larger heat dissipation area compared to QSFP-DD optical modules, thus providing better thermal contact between heat dissipation components and heat sinks, resulting in superior heat dissipation performance.

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