• Silver-colored arista osfp-800g-2fr4 sfp+ transceiver modules with blue handles and metallic connectors for 800g 2km sm use
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Arista

Arista OSFP-800G-2FR4 | 800G Transceiver, 2x FR4, 2km Single-Mode, Dual LC

OSFP-800G-2FR4

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Description

The Arista OSFP-800G-2FR4 is an 800 Gigabit Ethernet optical transceiver designed for 2km reach over single-mode fiber using dual duplex LC connectors. Utilizing four CWDM wavelengths (1271, 1291, 1311, 1331 nm) with PAM4 modulation, this twin-port OSFP module delivers 800Gbps throughput and supports 2x 400G-FR4 breakout applications without the need for breakout cables. Ideal for high-density data center interconnects, spine-leaf architectures, and AI/HPC workloads requiring low-latency, high-bandwidth connectivity.

Features

Twin-port OSFP design with closed finned top for enhanced thermal management in air-cooled switches
- PAM4 (Pulse Amplitude Modulation) signaling for high spectral efficiency
- CWDM4 optical multiplexing across four wavelengths per channel for compact, high-density interconnect
- Built-in Broadcom 7nm DSP chip for low power consumption and signal optimization
- Hot-pluggable form factor for easy deployment and maintenance
- EML (Electroabsorption Modulated Laser) transmitters with PIN photodiode receivers
- Supports 800G, 2x 400G, 4x 200G, and 8x 100G link configurations
- Interoperability with 2x 400GBASE-FR4 OSFP/QSFP-DD or 2x 200GBASE-FR4 QSFP transceivers
- Digital diagnostics monitoring (DDM) for real-time optical power, temperature, and voltage monitoring
- CMIS 5.0 management interface for advanced control and diagnostics
- Low latency and high reliability for AI, HPC, and cloud data center applications
- RoHS compliant and meets international safety and quality standards

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), Closed Finned Top
- Data Rate: 800 Gbps (8x 106.25 Gbps PAM4)
- Wavelengths: 1271nm, 1291nm, 1311nm, 1331nm (CWDM4)
- Reach: Up to 2km over OS2 single-mode fiber (SMF)
- Connector Type: Dual Duplex LC/UPC
- Power Consumption: Maximum 16.5W (typical 14-16W)
- Electrical Interface: 8x 106.25G PAM4 Retimed 2x400GAUI-4 C2M
- Operating Temperature: 0°C to +70°C (commercial)
- Compliance: IEEE 802.3ck, IEEE 802.3cu, OSFP MSA, CMIS 5.0
- Digital Diagnostics: DDM/DOM supported for real-time parameter monitoring
- Breakout Support: 2x 400G-FR4, 4x 200G, 8x 100G
- Forward Error Correction: Host-side FEC required (e.g., KP4)

FAQs

Q: What is the maximum transmission distance for the OSFP-800G-2FR4?
A: This transceiver supports transmission distances up to 2 kilometers over OS2 single-mode fiber when host-side forward error correction (FEC) is enabled.

Q: Can this module break out to 400G links?
A: Yes, the OSFP-800G-2FR4 supports 2x 400GBASE-FR4 breakout configuration without the need for additional breakout cables. It can also support 4x 200G or 8x 100G breakout modes depending on switch capabilities.

Q: What switches and platforms are compatible with this transceiver?
A: This transceiver is compatible with Arista switches such as the 7060X6-64PE and other platforms supporting OSFP 800G optics, including switches from Cisco, Juniper, and NVIDIA, provided the platform allows generic optics and has FEC enabled.

Q: What is the difference between 2FR4 and DR8 800G transceivers?
A: The 2FR4 uses dual duplex LC connectors with CWDM wavelengths for 2km reach over SMF, while the DR8 uses dual MPO-12 APC connectors with parallel single-mode fiber for 500m reach. The 2FR4 is ideal for longer data center interconnects.

Q: Does this transceiver require special firmware or licensing?
A: The transceiver is pre-programmed with CMIS 5.0 firmware and does not require additional licensing. However, the host switch must support OSFP 800G optics and have appropriate features enabled, including FEC.

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