200G QSFP56 FR4: Introduction and Application


200G QSFP56 FR4 is an optical transceiver module that enables medium-distance interconnection between devices within data centers. It conforms to the IEEE 802.3bs 200GBASE-FR4 Ethernet transmission protocol and is also compatible with the InfiniBand HDR transmission protocol. It uses a dual LC fiber interface, and operates at the CWDM4 wavelength (1271nm, 1291nm, 1311nm, 1331nm), with a maximum transmission distance of 2km (with FEC enabled).

200G QSFP56 FR4 is based on the QSFP56 form factor, which is a compact and hot-pluggable module that supports four lanes of 50Gbps each, resulting in a total bandwidth of 200Gbps. It has a low power consumption of less than 7W and supports digital diagnostics monitoring (DDM) and management interface (I2C).

200G QSFP56 FR4 is one of the products of Intel® Silicon Photonics, which is a technology that integrates optical and electronic components on a single silicon chip, using silicon as the optical medium. This technology enables high-speed, low-latency, and low-power data transmission over optical fibers, and has applications in data communication, data center, and high-performance computing.


200G QSFP56 FR4 is suitable for various scenarios that require high-bandwidth, low-latency, and reliable data transmission over medium distances, such as:

Data center interconnect (DCI): 200G QSFP56 FR4 can be used to connect different data centers or different zones within a data center, providing high-speed and low-cost data transfer over single-mode fibers. Depending on the topology and redundancy requirements, it can also support different network architectures, such as spine-leaf, mesh, or ring.
High-performance computing (HPC): 200G QSFP56 FR4 can connect servers, switches, or storage devices in HPC clusters, enabling fast and efficient data processing and computation. It can also support InfiniBand HDR, which is a high-performance interconnect protocol that offers low latency, high bandwidth, and high reliability for HPC applications.
Artificial intelligence (AI): 200G QSFP56 FR4 can be used to connect AI accelerators, such as GPUs or FPGAs, to servers or switches, facilitating high-throughput and low-latency data exchange for AI training and inference. It can also support various AI frameworks, such as TensorFlow, PyTorch, or Caffe, by using compatible drivers and libraries.


200G QSFP56 FR4 is a versatile and powerful optical transceiver module that can meet the increasing demand for high-speed, low-latency, and low-power data transmission in data centers and HPC applications. It is based on the Intel® Silicon Photonics technology, which integrates optical and electronic components on a single silicon chip, enabling high-performance and cost-effective optical interconnects. 200G QSFP56 FR4 is compatible with both Ethernet and InfiniBand protocols, and supports various network architectures and AI frameworks, making it a flexible and adaptable solution for various scenarios.

Leave a Comment

Scroll to Top