Arista QDD-800G-2VSR4 – QSFP-DD 2×VSR4 Optical Transceiver
The Arista QDD-800G-2VSR4 from Datacom Technologies BD is an ultra-high-performance 800 Gigabit optical transceiver designed for very short-reach, high-density connectivity over multimode fiber. It is ideal for hyperscale data centers, AI/ML clusters, and high-performance computing environments that require flexible 800G deployments using dual 400G VSR4 interfaces on Arista QSFP-DD-enabled platforms.
Specification Table
| Feature | Details |
|---|
| Product Name | Arista QDD-800G-2VSR4 |
| Form Factor | QSFP-DD |
| Data Rate / Capacity | 800Gbps |
| Standard / Protocol | 800G 2×VSR4 |
| Fiber Type / Interface | Multimode Fiber (MMF) |
| Wavelength / Technology | 850 nm |
| Transmission Distance | Up to 50 m (OM4) / 30 m (OM3) |
| Connector Type | Dual MPO-12 |
| Lane Configuration | 2 × 400G (2× VSR4) |
| Modulation | PAM4 |
| Compliance | IEEE 802.3ck, RoHS |
| Compatibility | Arista QSFP-DD switches and platforms |
| Application | Very short-reach data center networking |
Arista QDD-800G-2VSR4 Description
The Arista QDD-800G-2VSR4 optical transceiver is engineered to deliver flexible and efficient 800G Ethernet connectivity by integrating two independent 400G VSR4 optical interfaces within a single QSFP-DD module. Operating at an 850 nm wavelength over multimode fiber, it is optimized for very short-reach links inside data halls, enabling high-density connections with minimal latency and power consumption.
Its QSFP-DD form factor supports extreme port density and flexible breakout architectures, making it ideal for spine-to-leaf, leaf-to-server, and accelerator interconnect use cases. Fully tested for interoperability with Arista networking equipment, the 2×VSR4 transceiver provides a scalable, energy-efficient, and reliable solution for next-generation data center fabrics.
Key Features
• Supports ultra-high-speed 800Gbps optical transmission
• Dual 400G VSR4 interfaces in a single QSFP-DD module
• Very short-reach MMF connectivity for in-rack and adjacent-rack links
• 8 × 100G PAM4 lane architecture
• Dual MPO-12 connectors for flexible deployment
• Low power consumption and high reliability
• Hot-pluggable QSFP-DD form factor
• Optimized for Arista 800G switching platforms
Where It Can Be Used
• Hyperscale and enterprise data centers
• AI and machine learning clusters
• High-performance computing (HPC) environments
• Leaf-to-spine and spine-to-spine links
• Accelerator and GPU interconnects
• High-density 800G switching deployments
Get in Touch with Datacom Technologies BD
Call/WhatsApp: 01748173213
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