• Silver-colored arista osfp-400g-lr4 sfp+ transceiver modules with blue handles and metallic connectors for 10km lc use
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Arista

Arista OSFP-400G-LR4 | 400G OSFP Transceiver, LR4 Single-Mode, 10km, LC

Arista OSFP-400G-LR4 | 400G OSFP Transceiver, LR4 Single-Mode, 10km, LC

OSFP-400G-LR4

Stock Status: Enquire

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Description

The Arista OSFP-400G-LR4 is a 400GBASE-LR4 optical transceiver module delivering 400Gbps over duplex single-mode fibre at distances up to 10km — ideal for high-density data centre interconnects, campus core links, and enterprise backbone deployments requiring long-reach 400G connectivity. Using four CWDM4 optical channels (1271nm, 1291nm, 1311nm, 1331nm) over a single duplex LC fibre pair, this OSFP module features an 8x50G PAM4 electrical interface and runs 5°C–15°C cooler than QSFP-DD equivalents, making it a thermally efficient choice for high-port-density chassis.

Fully plug-and-play compatible with Arista EOS and CloudVision, the OSFP-400G-LR4 supports Digital Optical Monitoring (DOM) for real-time visibility into operating parameters and complies with IEEE 802.3cd, OSFP MSA CMIS 4.x, and OIF 56G PAM4 standards. It also supports breakout to 2x 400G-LR4 links on compatible 800G-2LR4 platforms, providing flexible deployment options. Upgrade your network with gear from iptrading.com.au — Australia's IT hardware specialists.

Features

- Hot-pluggable OSFP form factor for tool-free installation and live-network upgrades
- Plug-and-play integration with Arista EOS and CloudVision for zero-touch provisioning
- 4 CWDM4 optical channels multiplexed onto a single duplex LC fibre pair, simplifying cabling
- Thermal advantage: operates 5°C–15°C cooler than QSFP-DD equivalents, reducing chassis heat load
- Supports breakout to 2x 400G-LR4 links on 800G-2LR4-capable Arista platforms
- Optical interoperability with any IEEE 802.3-compliant 400GBASE-LR4 interface
- Digital Optical Monitoring (DOM) provides real-time access to Tx/Rx power, temperature and voltage
- Extends Arista's single-vendor optics portfolio from 1G through to 400G

Warranty

Arista hardware products come with a 1-year limited hardware warranty, covering defects in materials and workmanship under normal use.
Extended Warranty Options:
IP Trading offers tailored extended warranty solutions and support packages for Arista products. Contact our team to explore options that align with your organisation's needs.
https://www.arista.com/assets/data/pdf/Warranty.pdf

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Datasheet

Technical Specifications

- Data Rate: 400Gbps (400GBASE-LR4)
- Form Factor: OSFP (Octal Small Form-factor Pluggable)
- Electrical Interface: 8x50G PAM4 (400GAUI-8)
- Optical Connector: Duplex LC
- Fibre Type: Single-Mode Fibre (SMF)
- Maximum Reach: Up to 10km
- Wavelengths: 1271nm, 1291nm, 1311nm, 1331nm (CWDM4 / LR4)
- Optical Channels: 4 x 100G
- Modulation: PAM4
- Operating Temperature: 0°C to 70°C
- Digital Optical Monitoring (DOM): Supported
- Standards Compliance: IEEE 802.3cd, OSFP MSA CMIS 4.x, OIF 56G PAM4

FAQs

Q: What is the maximum transmission distance of the OSFP-400G-LR4?
A: The Arista OSFP-400G-LR4 supports distances of up to 10km over duplex single-mode fibre (SMF), making it well suited for data centre interconnects, metro links, and campus backbone deployments.

Q: What fibre and connector type does this transceiver require?
A: It requires duplex single-mode fibre (SMF) with a standard duplex LC connector. It is not compatible with multi-mode fibre or MPO/MTP connectors.

Q: Is the OSFP-400G-LR4 compatible with non-Arista 400GBASE-LR4 equipment?
A: Yes. The module complies with IEEE 802.3cd and the OSFP MSA standard, enabling optical interoperability with any standards-compliant 400GBASE-LR4 OSFP interface from other vendors, provided the host platform supports the OSFP form factor.

Q: Can this transceiver be used for breakout deployments?
A: Yes. When used with Arista platforms supporting 800G-2LR4 configurations, the OSFP-400G-LR4 can be used as part of a breakout arrangement to create 2x 400G-LR4 links, increasing port flexibility and density.

Q: Does the OSFP-400G-LR4 support Digital Optical Monitoring?
A: Yes. DOM (Digital Optical Monitoring) is fully supported, giving network administrators real-time visibility into transmit and receive power levels, temperature, voltage, and bias current — simplifying fault diagnosis and capacity planning.

Q: Can I purchase the Arista OSFP-400G-LR4 in Australia from IP Trading?
A: Yes. IP Trading (iptrading.com.au) is an Australian B2B IT hardware specialist stocking Arista optics including the OSFP-400G-LR4. Contact our team for pricing, availability, and volume purchasing options with local support.

Datasheet

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