• Silver-colored arista qdd-400g-plr4 sfp+ transceiver modules with blue handles and metallic connectors for 400g qsfp-dd use
1 1

Arista

Arista QDD-400G-PLR4 | 400G QSFP-DD Transceiver, Single-Mode, 10km, MPO-12

QDD-400G-PLR4

POA
POA
POA
Sale Sold out
Taxes included. Shipping calculated at checkout.

Description

The Arista QDD-400G-PLR4 is a 400GBASE-PLR4 QSFP-DD transceiver designed for high-bandwidth data centre and enterprise network connectivity. It delivers 400 Gigabit Ethernet throughput up to 10km over single-mode fibre using four parallel lanes at 1310nm wavelength via MPO-12 connector. The module supports 4x100G breakout mode for flexible deployment and interoperates with 100G-LR QSFP28 transceivers.

Features

400GBASE-PLR4 parallel optics technology for high-density 400G connectivity
- Four independent 100G PAM-4 lanes operating at 1310nm wavelength band
- 10km reach over single-mode fibre with 6.3 dB optical budget
- Breakout capability to 4x 100GBASE-LR for flexible network architecture
- Interoperability with 100G-LR QSFP28 transceivers in breakout mode
- Hot-pluggable QSFP-DD form factor for easy installation and replacement
- CMIS 4.0 management interface for advanced digital diagnostics
- Digital Optical Monitoring (DOM) for real-time performance tracking
- Low power consumption (max 12W) for improved energy efficiency
- QSFP-DD MSA and IEEE 802.3cu standards compliant
- RoHS and TAA compliant for regulatory requirements
- Commercial temperature range (0°C to 70°C) for data centre environments
- MPO-12 APC connector for low insertion loss and back reflection

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 (Quad Small Form-Factor Pluggable Double Density)
- Data Rate: 400 Gbps
- Standard: 400GBASE-PLR4 (IEEE 802.3cu compliant)
- Wavelength: 1310nm (4 lanes: 1271, 1291, 1311, 1331 nm)
- Reach: Up to 10km over single-mode fibre (SMF)
- Connector: MPO-12 / MTP-12 APC (Angled Physical Contact)
- Optical Budget: 6.3 dB minimum
- Breakout Support: 4x 100GBASE-LR (4x 100G)
- Power Consumption: Max 12W
- Operating Temperature: 0°C to 70°C (commercial grade)
- Digital Diagnostics: DOM / DDM support (Digital Optical Monitoring)
- Management Interface: CMIS 4.0 compliant
- Hot-Pluggable: Yes
- Compliance: QSFP-DD MSA, 100G Lambda MSA, OIF 56G PAM4, RoHS

FAQs

Q: What is the difference between PLR4 and LR4 400G transceivers?
A: The 400G-PLR4 uses parallel optics with an MPO-12 connector and four lanes at 1310nm wavelengths, while the LR4 uses duplex LC connectors with four wavelengths over a single fibre pair. PLR4 supports 4x100G-LR breakout, making it more flexible for hybrid 100G/400G deployments.

Q: Can the QDD-400G-PLR4 break out to multiple 100G connections?
A: Yes, the QDD-400G-PLR4 supports 4x 100GBASE-LR breakout mode, enabling it to interoperate with four separate 100G-LR QSFP28 transceivers. This is ideal for gradual migration from 100G to 400G infrastructure or connecting to legacy 100G equipment.

Q: Is this transceiver compatible with Arista switches?
A: Yes, the QDD-400G-PLR4 is an Arista-branded transceiver designed for use with Arista's 400G-capable platforms, including the 7800R3, 7500R3, and 7300X3 series switches. It is programmed and validated for seamless compatibility with Arista EOS.

Q: What type of fibre cable is required for this transceiver?
A: The QDD-400G-PLR4 requires single-mode fibre (SMF) optical cable with MPO-12 or MTP-12 connectors featuring APC polish. It supports up to 10km transmission distance over OS2 single-mode fibre with sufficient optical budget.

Q: Does this module support Digital Optical Monitoring?
A: Yes, the QDD-400G-PLR4 features Digital Optical Monitoring (DOM) support, providing real-time access to operating parameters such as transmit/receive power, temperature, voltage, and laser bias current via CMIS 4.0 interface for proactive network management.

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