• Silver-colored arista qdd-400g-zr2 sfp+ transceiver modules with blue handles for 400g coherent tunable 120km smf
1 1

Arista

Arista QDD-400G-ZR2 | 400G Digital Coherent Tunable Transceiver, 120km SMF

QDD-400G-ZR2

Stock Status: Enquire

Request Quote
Sale Sold out
Taxes included. Shipping calculated at checkout.

Description

The Arista QDD-400G-ZR2 is a high-performance QSFP-DD digital coherent optical transceiver designed for 400G data center interconnect applications. Featuring C-band tunable wavelengths and 7nm coherent DSP technology with DP-16QAM modulation, this module supports up to 120km transmission over single-mode fiber with optical amplification. Ideal for hyperscale data centers, metro edge, and enterprise DCI deployments requiring long-reach connectivity.

Features

C-band tunable laser with ultra-narrow linewidth for flexible DWDM deployment
- 7nm coherent DSP ASIC technology for high performance and power efficiency
- DP-16QAM modulation delivering 400G per wavelength
- Integrated variable optical attenuator (VOA) for transmit power optimization
- Coherent detection technology for improved sensitivity and lower BER
- Hot-pluggable QSFP-DD form factor for easy deployment and maintenance
- Digital diagnostics monitoring (DDM) for real-time performance visibility
- OIF 400ZR and QSFP-DD MSA compliant for multi-vendor interoperability
- No inline chromatic dispersion compensation required
- Supports point-to-point topology for DCI and metro edge applications
- CMIS management interface for advanced configuration and telemetry
- RoHS compliant and meets industry environmental 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.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

Form Factor: QSFP-DD (Double Density)
- Data Rate: 400Gbps (400GBASE-ZR)
- Wavelength: C-Band tunable (191.3 THz to 196.1 THz)
- Transmission Distance: Up to 120km over single-mode fiber with amplification, up to 40km unamplified
- Connector Type: Duplex LC
- Modulation Format: DP-16QAM (Dual Polarization 16-QAM)
- DSP Technology: 7nm coherent DSP ASIC
- Power Consumption: Maximum 18W typical
- Compliance: OIF 400ZR, QSFP-DD MSA, CMIS 4.0/5.0
- Operating Temperature: 0°C to 70°C (Commercial)
- Digital Diagnostics: DOM/DDM support via I2C interface
- FEC: C-FEC (Concatenated FEC) with 10.8dB net coding gain
- Channel Spacing: ITU-T 75GHz grid

FAQs

Q: What is the maximum transmission distance for the QDD-400G-ZR2?
A: The transceiver supports up to 40km unamplified transmission and up to 120km with optical amplification (EDFA) over single-mode fiber. It requires DWDM Mux/Demux equipment for wavelength multiplexing in multi-span deployments.

Q: Is this transceiver compatible with other vendor 400ZR modules?
A: Yes, the QDD-400G-ZR2 complies with OIF 400ZR standards, enabling multi-vendor interoperability with other standard-compliant 400G ZR coherent modules. It supports standard C-FEC and operates on ITU-T grid frequencies for seamless integration.

Q: What platforms support the Arista QDD-400G-ZR2 transceiver?
A: This module is supported on specific Arista platforms with QSFP-DD ports capable of handling coherent optics. Consult Arista's Transceiver and Cable Compatibility Guide and the 400ZR DCI Solution documentation for platform-specific requirements and validated configurations.

Q: Can this module operate in breakout mode?
A: The 400ZR coherent transceiver is designed for native 400G operation and does not support traditional breakout configurations. It provides a single 400GbE interface optimized for long-haul data center interconnect applications.

Q: What are the power and cooling requirements?
A: The module consumes approximately 18W maximum and requires adequate host system cooling. It is classified as Power Class 8 under QSFP-DD specifications and will power up in Low Power Mode if LPMode is asserted during hot-plug or power cycle events.

Recently Viewed

  • Request a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us