• Silver-colored arista qsfp-100g-zr42 transceiver modules with blue handles and metallic connectors for 80km single-mode use
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Arista

Arista QSFP-100G-ZR42 | 100G Transceiver, 80km Single-Mode, 1310nm, LC

QSFP-100G-ZR42

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Description

The Arista QSFP-100G-ZR42 is a 100GBASE-ZR4 QSFP28 optical transceiver engineered for long-reach data center interconnects and metro network applications. Supporting link distances up to 80km over OS2 single-mode fiber with duplex LC connectors, this module uses four wavelengths in the 1295-1309nm range with 4x25G electrical lanes. Ideal for connecting distributed data centers, enterprise campus cores, and service provider metro networks requiring high-bandwidth, extended-reach connectivity.

Features

100GBASE-ZR4 compliance for up to 80km reach over single-mode fiber
- Four-wavelength LAN WDM transmission (1295-1309nm) over duplex LC connectors
- Direct-detect NRZ modulation with integrated SOA for extended reach
- Hot-pluggable QSFP28 form factor for flexible deployment
- Digital optical monitoring (DOM) for real-time performance tracking
- Host-based RS-FEC support for enhanced signal integrity
- Four electrical lanes operating at 25Gbps per lane
- Commercial temperature range (0°C to 70°C) operation
- Low power consumption (5.5W max) for density-optimized deployments
- QSFP28 MSA compliant for multi-vendor platform compatibility
- Ideal for data center interconnect, metro networks, and long-haul enterprise links
- Minimal fiber dispersion operating in O-band optical spectrum

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: QSFP28 hot-pluggable transceiver
- Data Rate: 100Gbps (4 x 25Gbps lanes)
- Wavelength: 1295nm to 1309nm (LAN WDM grid)
- Connector Type: Duplex LC
- Fiber Type: Single-mode fiber (SMF OS2)
- Maximum Distance: Up to 80km
- Optical Technology: Direct-detect NRZ modulation with SOA (Semiconductor Optical Amplifier)
- Power Consumption: Maximum 5.5W
- Operating Temperature: 0°C to 70°C (commercial temperature range)
- Digital Diagnostics: DOM/DDM support for real-time parameter monitoring
- Compliance: QSFP28 MSA compliant, 100GBASE-ZR4
- FEC Requirement: Host-based RS-FEC (Reed Solomon Forward Error Correction) required

FAQs

Q: What platforms support the QSFP-100G-ZR42 transceiver?
A: The QSFP-100G-ZR42 is supported on specific Arista platforms with QSFP28 100G ports. Due to its higher power consumption (5.5W), platform compatibility should be verified through Arista's Transceiver and Cable Guide to ensure adequate power budget and cooling capabilities.

Q: Does this module require Forward Error Correction?
A: Yes, the QSFP-100G-ZR42 requires host-based RS-FEC (Reed Solomon Forward Error Correction) to achieve the specified 80km reach and maintain optimal bit error rate performance. Ensure FEC is enabled on the host platform.

Q: Can the QSFP-100G-ZR42 interoperate with other vendors' ZR4 transceivers?
A: The module uses standard 100GBASE-ZR4 specifications with LAN WDM wavelengths, enabling potential interoperability with other compliant ZR4 transceivers. However, best performance is achieved when paired with another QSFP-100G-ZR42 or validated compatible module.

Q: What is the difference between ZR4 and other 100G long-reach transceivers?
A: The ZR4 uses four wavelengths (LAN WDM) with direct-detect technology and SOA amplification to reach 80km, operating in the O-band where dispersion is minimal. This provides a cost-effective long-reach solution compared to coherent optics, with lower power consumption than legacy chassis-based solutions.

Q: What fiber type is required for this transceiver?
A: The QSFP-100G-ZR42 requires OS2 single-mode fiber (G.652 standard) with duplex LC connectors. The engineered link budget supports up to 80km reach with typical fiber attenuation characteristics. High-quality fiber and clean connections are essential for optimal performance.

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