Everything You Should Know About 800G FR4

Designed for large networks such as mega data centers and service provider backbones, 800G FR4 optical modules are being used by more and more companies with the widespread use of data-intensive applications such as artificial intelligence, cloud computing and data center virtualization. Upgrading from 400G to 800G in existing data centers not only effectively increases data transfer rates for higher capacity as well as lower latency requirements, but also achieves lower power consumption with the same amount of data transfer.

What is 800G FR4

The 800G FR4 optical module is an 800G Ethernet module that transmits over single-mode optical fiber for up to 2km. 800G FR4 FR stands for 2km and 4 stands for the fact that the module employs four optical channels, each with a speed of 200Gbps, which together add up to 800Gbps. 800G FR4 uses PAM4 modulation, which has a higher spectral efficiency than NRZ, to transmit more data over the same bandwidth. QSFPTEK offers two different package types, QSFP-DD and OSFP, with maximum power consumption of 16.5W for OSFP and 18W for QSFP-DD, complying with IEEE 802.3cu, IEEE P802.3ck, OSFP MSA, QSFP-DD, IEEE P802.3ck, IEEE P802.3ck, QSFP MSA, QSFP-DD, and IEEE P802.3ck. The 800G OSFP FR4 adopts a Dual Duplex LC interface, while the 800G QSFP-DD 2FR4 uses a Dual CS Duplex interface. 800G FR4 QSFP-DD is widely used in HPC, cloud computing, large-scale data center interconnections, and 800G to 2x 400G applications. 400G applications.

Difference Between 800G OSFP and 800G QSFP-DD

The difference between 800G OSFP and QSFP-DD is that OSFP has a larger size, better heat dissipation, and is future-proofed for higher speeds, but requires a dedicated OSFP interface and is not compatible with QSFP devices. On the other hand, QSFP-DD is smaller in size, consumes relatively less power, is compatible with existing devices, and can support higher density applications. The table below shows the difference in their parameters:

Applications of 800G FR4

The applications of 800G FR4 have different methods depending on the scenarios. In the following, I will introduce the basic applications of 800G FR4 to you.

Direct Connection

800G module direct connect is a simple and efficient connection solution. It can be used to connect two different data center rooms or to serve as a backbone network within a campus. It provides a direct and stable high-speed network connection, which is ideal for high-performance computing clusters or ultra-large data centers to meet massive data transmission, reduce network latency, and meet real-time data processing and storage requirements.

800G to 2x 400G FR4 Branch Application

If your network is already using 400G modules on a large scale and you have the need to upgrade to 800G, 800G QSFP-DD 2FR4 can meet your upgrade needs. 800G FR4 modules are backward compatible with other QSFP packaged modules and devices via QSFP-DD encapsulation, and can be connected to 400G FR4 via two LC UPC Duplex OS2 SMF patch cables. The QSFP-DD package allows the 800G FR4 module to be upgraded to 800G without changing the existing network equipment and infrastructure.

Benefits of 800GBASE-FR4 Optics Solutions

After learning more about what the 800G FR4 module is and its basic applications, I'll briefly explain what its benefits are.

First, the 800G FR4 module provides up to 800Gbps transmission speed, which is high enough to support applications that require higher bandwidth, such as HPC, artificial intelligence, autonomous driving, and military applications.

Secondly, with the same amount of data transfer, the use of 800G module has lower power consumption and lower heat dissipation. In some high-density applications, 800G modules have the advantage of effectively increasing the overall bandwidth and transmission rate of the network.

Finally, the 800G FR4 module is also quite flexible. It can be directly connected to the 800G equipment to connect two different networks and assume the role of a backbone network. It can also be used to upgrade a 400G network to an 800G network through a 1 in 2 connection, a flexible deployment that facilitates smooth upgrades.

Conclusion

With data rates up to 800Gbps and flexible connectivity solutions, 800G FR4 optical modules are an excellent choice for high-speed data transmission in today's data centers and communication networks. It provides a smooth upgrade from 400G to 800G and meets the growing demand for data processing capabilities, thus enhancing the overall performance and reliability of the network and becoming the preferred solution for next-generation data centers.