• Silver-colored Arista OSFP-800G-2LR4 sfp+ transceiver modules with blue handles and metallic connectors for 10km use
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Arista

Arista OSFP-800G-2LR4 | 800G Transceiver, 2xLR4, 10km, Dual LC, SMF

OSFP-800G-2LR4

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Description

The Arista OSFP-800G-2LR4 delivers 800 Gigabit Ethernet connectivity over distances up to 10km using single-mode fiber with dual duplex LC connectors. Designed for high-density data center spine-leaf architectures, this twin-port OSFP module supports 2x 400GBASE-LR4 or 8x 100GBASE-LR breakout configurations without additional breakout cables. Ideal for AI computing, HPC, and cloud infrastructure requiring long-reach interconnects.

Features

8-lane 800GBASE-2LR4 architecture using PAM4 modulation at 106.25 Gbps per lane
- Twin-port design with 2x duplex LC connectors for cable-free 2x 400G or 8x 100G breakout
- CWDM4 wavelength multiplexing (1271, 1291, 1311, 1331 nm) for efficient single-mode fiber usage
- Hot-pluggable OSFP form factor with closed finned top cooling for high-density deployments
- Digital diagnostics monitoring (DDM) for real-time temperature, voltage, current, and optical power tracking
- Low latency design optimized for AI/ML workloads and high-frequency trading applications
- IEEE 802.3ck and OSFP MSA compliant for multi-vendor interoperability
- CMIS 5.0 interface support for advanced management and firmware upgradability
- Designed for spine-leaf architectures supporting switch-to-switch and switch-to-server connectivity
- Suitable for InfiniBand NDR and 800 Gigabit Ethernet applications
- RoHS compliant with commercial temperature range operation

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

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

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Technical Specifications

FAQs

Technical Specifications

Form Factor: OSFP (Octal Small Form Factor Pluggable)
- Data Rate: 800 Gbps (8 x 106.25 Gbps PAM4)
- Wavelengths: 1271nm, 1291nm, 1311nm, 1331nm (CWDM4)
- Maximum Distance: 10km over OS2 single-mode fiber (SMF)
- Connectors: 2x Duplex LC/UPC
- Optical Output Power: -2.7 to +5.1 dBm per lane
- Receiver Sensitivity: -9 to +5.1 dBm per lane
- Power Consumption: Typical 14.5W
- Operating Temperature: 0°C to 70°C (commercial)
- Compliance: IEEE 802.3ck, OSFP MSA, CMIS 5.0
- Digital Diagnostics: DDM/DOM support for real-time monitoring
- Cooling: Closed finned top design for enhanced thermal management

FAQs

Q: What breakout configurations does the OSFP-800G-2LR4 support?
A: This transceiver supports 2x 400GBASE-LR4 or 8x 100GBASE-LR breakout configurations. The dual LC duplex connectors enable two physically distinct 400G-LR4 links without requiring optical breakout cables, simplifying deployment and cable management.

Q: Can this 800G OSFP module be used in 400G ports?
A: The OSFP-800G-2LR4 can operate in some 400G OSFP ports if the port supports the higher power draw of 800G modules and can operate at 8x 50G PAM-4 signaling. Verify your switch platform specifications support 800G module power requirements before deployment.

Q: What fiber type is required for 10km reach?
A: The transceiver requires OS2 single-mode fiber (G.652) for the full 10km reach. Standard duplex LC/UPC patch cables are used, with each of the two LC duplex connectors carrying four CWDM wavelengths multiplexed together.

Q: Is this transceiver compatible with other vendors' equipment?
A: Yes, the OSFP-800G-2LR4 is IEEE 802.3ck compliant and interoperates with any standards-compliant 800G-2LR4, 2x 400G-LR4, or 2x 200G-LR4 transceiver regardless of form factor (OSFP or QSFP-DD) or vendor.

Q: What applications is this transceiver best suited for?
A: Ideal for data center spine-leaf architectures requiring long-reach connectivity, including uplinks between top-of-rack and spine switches, connections to storage arrays, and high-performance computing clusters. The 10km reach supports inter-building and campus data center deployments.

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