Arista Compatible Transceivers
Arista QDD-400G-LR8 Compatible QSFP-DD Transceiver
QDD-400G-LR8 Compatible, Arista compatible QSFP-DD module, 400GBASE-LR8 QSFP-DD for Arista, 1310nm 10km transceiver, Arista 7060X, 7280R, 7388 and 7800R series switches module, QSFP-DD 400G single-mode transceiver
Arista QDD-400G-LR8 Compatible QSFP-DD Transceiver
400GBASE-LR8 QSFP-DD Transceiver Module | Dual LC SMF | 10km DOM Support
Product Overview
The Arista QDD-400G-LR8 compatible QSFP-DD transceiver delivers 400G connectivity over single-mode fiber for Arista 7060X, 7280R, 7388 and 7800R series switches, using 400GBASE-LR8 LWDM optics with 8 wavelengths (1295.56–1309.14 nm) up to 10km.
With integrated Digital Optical Monitoring (DOM) and full compliance with IEEE 802.3bs and the QSFP-DD MSA, it is tested for error-free operation in Arista switches.
Key Features of Arista QDD-400G-LR8
- Supports 400GBASE-LR8 Ethernet
- QSFP-DD hot-pluggable form factor
- Dual LC optical connectors
- LWDM optics with 8 wavelengths
- Up to 10km over single-mode fiber
- Digital Optical Monitoring (DOM) support
- Max power under 14W
Technical Specifications

Parameter | Specification |
Model | QDD-400G-LR8 Compatible |
Form Factor | QSFP-DD |
Data Rate | 400Gbps |
Optical Standard | 400GBASE-LR8 |
Optical Technology | LAN-WDM (LWDM) |
Fiber Type | Single-Mode Fiber (SMF) |
Wavelength | LWDM 8 wavelengths (1295.56–1309.14 nm) |
Max Distance | 10km |
Connector Type | Dual LC |
DOM Support | Yes |
Power Consumption | < 14W |
Hot Swappable | Yes |
Operating Temperature | 0°C to 70°C |
Compliance | IEEE 802.3bs, QSFP-DD MSA, RoHS |
Compatibility | Arista 7060X, 7280R, 7388 and 7800R series switches and other Arista platforms |
Why Choose a Compatible Arista Module
This compatible QSFP-DD module delivers the same 400G performance as the original Arista module, programmed and tested for Arista 7060X, 7280R, 7388 and 7800R series switches at a fraction of the OEM price.
- Programmed and tested for Arista 7060X, 7280R, 7388 and 7800R series switches
- Integrated DOM for real-time monitoring of temperature, voltage and optical power
- Compliant with IEEE 802.3bs and the QSFP-DD MSA for seamless interoperability
- Cost-effective alternative without compromising performance or reliability
High-Value Application Scenarios
AI Training Clusters
400G links move massive training data between GPU servers and leaf switches, carrying AI fabric traffic over single-mode fiber.
Data Center Interconnects
With 10km reach over single-mode fiber, this module links buildings and sites within a campus or metro area, keeping 400G throughput between distributed sites.
Spine-Leaf Deployments
As a spine or leaf uplink, the 400G LR8 module feeds high-bandwidth aggregation ports from one QSFP-DD slot, simplifying cabling and saving switch ports.
Cloud Data Centers
Cloud operators use 400G QSFP-DD optics to scale out high-bandwidth fabrics, and this compatible module drops into Arista switches without requalification.
Compatibility
This module is compatible with Arista 7060X, 7280R, 7388 and 7800R series switches and other Arista platforms.
FAQ
Is this module compatible with Arista switches?
Yes, this module is fully compatible with Arista switches and is programmed for plug-and-play operation.
What fiber type and distance does it support?
It operates over single-mode fiber with dual LC connectors, reaching up to 10km.
Which Arista systems does this module support?
This module is programmed and tested for Arista 7060X, 7280R, 7388 and 7800R series switches, and it also works in other Arista platforms that accept QSFP-DD optics.
Does this module support DOM?
Yes, integrated Digital Optical Monitoring (DOM) provides real-time monitoring of temperature, voltage and optical power.
Get a Quote for Your 400G Deployment
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