Arista LPO-800G-2DR4 | 800G OSFP LPO Transceiver, 2xDR4, 1310nm, 500m SMF

Q: What is the advantage of LPO transceivers over traditional DSP-based modules?
A: Linear Pluggable Optics (LPO) technology replaces the power-intensive digital signal processing (DSP) components with linear drivers and transimpedance amplifiers. This reduces power consumption by approximately 40-50%, delivering lower latency and significantly reducing operational costs in hyperscale data centre environments where hundreds or thousands of transceivers are deployed.

Q: What is the difference between 800G 2xDR4 and DR8 configurations?
A: The 2xDR4 configuration uses dual MPO-12 connectors and can be operated as two independent 400G DR4 links, offering flexible port breakout options. DR8 uses a single MPO-16 connector for a unified 800G link. Both reach 500m over single-mode fibre at 1310nm, but 2xDR4 provides greater deployment flexibility in scenarios requiring dual 400G connections.

Q: Is the LPO-800G-2DR4 compatible with existing 400G infrastructure?
A: Yes, the dual-port 2xDR4 design allows the transceiver to break out into two independent 400G links, enabling seamless integration with existing 400G DR4 optical modules via standard single-mode MPO-12 patch cables. This backward compatibility facilitates smooth upgrades from 400G to 800G network architectures.

Q: What switches support the LPO-800G-2DR4 transceiver?
A: The LPO-800G-2DR4 is supported by Arista 7060X6 series switches, including the 7060X6-64PE and 7060X6-32PE models, which feature OSFP ports supporting 800G, 400G, 200G, and 100G speeds. Compatibility requires EOS version 4.34.0F or later. Host ASIC must support CMIS 5.0 and appropriate SerDes capabilities for linear equalization.

Q: What applications are best suited for this transceiver?
A: The LPO-800G-2DR4 is optimized for AI/ML data centres, high-performance computing clusters, and hyperscale cloud environments. It excels in switch-to-switch interconnects, GPU-to-GPU networking for AI training workloads, and high-density top-of-rack deployments where low power consumption and minimal latency are critical for performance and operational efficiency.