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Arista QDD-400G-SR8 – QSFP-DD SR8 Optical Transceiver
The Arista QDD-400G-SR8 from Datacom Technologies BD is a high-performance 400 Gigabit optical transceiver designed for short-reach, high-density connectivity over multimode fiber. It is ideal for modern data centers, cloud environments, and enterprise networks that require reliable, low-latency 400G transmission on Arista QSFP-DD-enabled switching platforms.
Specification Table
| Feature | Details |
|---|
| Product Name | Arista QDD-400G-SR8 |
| Form Factor | QSFP-DD |
| Data Rate / Capacity | 400Gbps |
| Standard / Protocol | 400GBASE-SR8, IEEE 802.3bs |
| Fiber Type / Interface | Multimode Fiber (MMF) |
| Wavelength / Technology | 850 nm |
| Transmission Distance | Up to 100 m (OM4) / 70 m (OM3) |
| Connector Type | MPO-16 |
| Lane Configuration | 8 × 50G |
| Modulation | PAM4 |
| Compliance | IEEE 802.3bs, RoHS |
| Compatibility | Arista QSFP-DD switches and platforms |
| Application | Short-reach data center networking |
Arista QDD-400G-SR8 Description
The Arista QDD-400G-SR8 optical transceiver is engineered to deliver efficient and dependable 400G Ethernet connectivity over multimode fiber using eight 50G PAM4 lanes. Operating at an 850 nm wavelength, it ensures stable signal integrity, low bit error rates, and consistent performance for short-distance links within high-density data center environments.
Its compact QSFP-DD form factor enables high port density while maintaining power efficiency and thermal stability. Fully tested for interoperability with Arista networking equipment, the SR8 transceiver provides a scalable, cost-effective, and dependable solution for upgrading data center fabrics to 400G speeds, supporting cloud computing, virtualization, and high-performance workloads.
Key Features
• Supports 400Gbps high-speed optical transmission
• SR8 multimode fiber connectivity for short distances
• 8 × 50G PAM4 lane architecture
• 850 nm wavelength for stable performance
• MPO-16 connector for high-density cabling
• Low power consumption and high reliability
• Hot-pluggable QSFP-DD form factor
• Optimized for Arista 400G switching platforms
Where It Can Be Used
• Enterprise and hyperscale data centers
• Leaf-spine and aggregation architectures
• Server-to-switch and switch-to-switch links
• Cloud computing and virtualization platforms
• High-performance computing (HPC) environments
• High-density 400G switching deployments
Get in Touch with Datacom Technologies BD
Call/WhatsApp: 01748173213
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