Arista OSFP-400G-PLR4 | 400G PLR4 Transceiver, Single-Mode, 1310nm, 10km, MPO

Q: What is the difference between OSFP and QSFP-DD form factors?
A: OSFP modules are larger with integrated heat sinks, supporting up to 16W power consumption for longer-reach and more complex optics. QSFP-DD modules are more compact and backward-compatible with legacy QSFP modules. Both provide 8 x 50Gbps electrical lanes for 400G throughput and can interoperate when using the same media type like PLR4.

Q: Can the OSFP-400G-PLR4 break out to 100G connections?
A: Yes, the 400G-PLR4 supports breakout to 4 x 100G and interoperates with 4 x 100G-LR QSFP28 transceivers. This allows flexible migration from 100G to 400G infrastructure while maximizing existing investments.

Q: What fibre cable type is required for this transceiver?
A: This transceiver requires OS2 single-mode fibre with MPO/MTP-12 connectors (APC polished). It uses parallel optics with four wavelengths at 1310nm to achieve 400Gbps over distances up to 10km.

Q: Is this transceiver compatible with Arista switches?
A: Yes, the OSFP-400G-PLR4 is designed for Arista Networks platforms with OSFP ports, such as the 7060DX4 series. It meets MSA standards and is coded for seamless integration with Arista EOS.

Q: What is the typical power consumption of this module?
A: The OSFP-400G-PLR4 typically consumes less than 10W, making it efficient for high-density data centre deployments. The OSFP form factor supports up to 16W maximum, providing thermal headroom for reliable operation.