Description
The AddOn Arista Networks® QDD-400G-VSR4-AO is a high-performance, TAA-compliant QSFP-DD transceiver designed for ultra-high-speed 400GBase-SR4 Ethernet connectivity in modern data center and enterprise environments. It provides 400G throughput up to 50 meters over multi-mode fiber (MMF) using an 850nm wavelength and an MPO-12 connector, delivering reliable, low-latency data transmission.
Engineered to meet or exceed OEM specifications, this module is 100% compatible with Arista Networks® systems and supports CMIS Rev. 4.0, ensuring seamless network integration. Its hot-swappable design, robust ESD protection, and digital optical monitoring (DOM) capabilities allow real-time performance monitoring and simplified maintenance. Fully compliant with IEEE 802.3ck, IEEE 802.3db, and QSFP-DD MSA standards, this transceiver is ideal for next-generation high-bandwidth applications such as cloud computing, hyperscale data centers, and high-performance computing networks.
| Specification | Details |
|---|---|
| SKU | QDD-400G-VSR4-AO |
| Compatible OEM | Arista Networks® |
| Form Factor | QSFP-DD |
| Data Rate | 400GBase-SR4 |
| Modulation | PAM4 |
| Wavelength | 850nm |
| Fiber Type | Multi-Mode Fiber (MMF) |
| Connector | MPO-12 |
| Max Reach | 50m |
| Optical Interface | 53.125 GBd PAM4, 4-channel |
| Electrical Interface | 26.5625 GBd PAM4, 8-channel AUI-8 C2M |
| Operating Temperature | 0°C to 70°C |
| Power Dissipation | 8W (Typ.) |
| Supply Voltage | 3.135V – 3.465V |
| DOM Support | Yes |
| Hot Swappable | Yes |
| CMIS Support | Rev. 4.0 |
| Compliance Standards | IEEE 802.3ck, IEEE 802.3db, QSFP-DD MSA |
| TAA Compliant | Yes |
| RoHS Compliant | Yes |
| Applications | 400G Ethernet, Datacenter Switches, Cloud Infrastructure |
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