• Silver-colored arista qdd-400g-zrp2 tunable coherent sfp+ transceiver modules with blue handles and metallic connectors
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Arista

Arista QDD-400G-ZRP2 | 400G ZR+ OpenZR+ QSFP-DD Transceiver, >0dBm, LC

QDD-400G-ZRP2

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Description

This is a 400GBASE-ZR+ digital coherent tunable transceiver in a QSFP-DD form factor, part of the Arista 400G ZR/ZR+ coherent optics family. It is compliant with the OpenZR+ MSA and is aimed at long-haul DWDM links over external line systems, as well as unamplified point-to-point data centre interconnect.

The high-power variant provides Tx output power greater than 0 dBm, which is the attribute that separates it from lower-power 400ZR modules. It uses a duplex LC optical connector over single-mode fibre and supports reach beyond 120 km when paired with an external line system or amplification. The wavelength is software-tunable across the DWDM grid, and the module can run in 400G (16QAM), 300G (8QAM), 200G (QPSK) and 100G (QPSK) modes depending on the link's optical signal-to-noise budget.

The module plugs directly into QSFP-DD ports on Arista 400G platforms, allowing IP-over-DWDM without a separate transponder shelf.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- OpenZR+ MSA compliant 400G coherent QSFP-DD module
- Software-tunable DWDM wavelength
- Supports 400G, 300G, 200G and 100G operating modes
- High Tx output power suits external line systems and unamplified point-to-point links
- O-FEC forward error correction
- Plugs directly into 400G QSFP-DD ports for IP-over-DWDM

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: QSFP-DD
- Standard: 400GBASE-ZR+ / OpenZR+
- Optics type: Digital coherent, tunable DWDM
- Tx output power: greater than 0 dBm (high-power variant)
- Optical connector: Duplex LC
- Fibre type: Single-mode
- Reach: over 120 km with external line system or amplification
- Data rates: 400G (16QAM), 300G (8QAM), 200G (QPSK), 100G (QPSK)
- Forward error correction: O-FEC

FAQs

Q: How does this module differ from a standard 400ZR transceiver?
A: This is the ZR+ / OpenZR+ high-power variant with Tx output power greater than 0 dBm. It supports multiple data rates and is intended for external line systems and longer unamplified links than lower-power 400ZR modules.

Q: Which ports does it plug into?
A: It fits QSFP-DD ports on Arista 400G platforms. Check Arista's Transceiver and Cable Guide for the supported platform list.

Q: Can it operate at speeds below 400G?
A: Yes. The module supports 400G (16QAM), 300G (8QAM), 200G (QPSK) and 100G (QPSK) modes, allowing you to trade capacity for reach on longer or noisier links.

Q: Can it be used without an external amplifier?
A: It is designed for both amplified long-haul links over external DWDM line systems and unamplified point-to-point data centre interconnect, depending on the link loss budget.

Q: What connector and fibre type does it use?
A: It uses a duplex LC connector over single-mode fibre.

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