Description
The AddOn Cisco® to Mellanox® compatible 400GBase-AOC QSFP-DD to 2xQSFP56 Active Optical Cable is designed to deliver high-speed, low-latency connectivity for next-generation data centers and enterprise networking environments. With a reach of 3 meters (9.8ft), this active optical cable supports 26.5625GBd PAM4 and 25.78125Gbps NRZx4 channels, ensuring exceptional performance in demanding applications.
Built with 850nm VCSEL optics and OM3 multimode fiber, it is hot-pluggable, TAA compliant, and fully tested for Cisco® and Mellanox® compatibility. Offering a maximum power consumption of 8.5W on the QSFP-DD end and 5W on each QSFP56 end, this cable is energy-efficient and reliable.
Every unit is uniquely serialized, programmed, and application-tested to meet or exceed OEM specifications. Backed by AddOn’s limited lifetime warranty, this solution provides a cost-effective and dependable alternative for scaling your high-bandwidth infrastructure.
| Specification | Details |
|---|---|
| SKU | ADD-Q4CI2Q56MX-O3M |
| Compatibility | Cisco® QDD-400-AOC3M, Mellanox® MFS1S00-H003E |
| Product Type | Active Optical Cable (AOC) |
| Data Rate | 400GBase (26.5625GBd PAM4, 25.78125Gbps NRZx4) |
| Connector Type | QSFP-DD to 2xQSFP56 |
| Cable Length | 3m (9.8ft) |
| Wavelength | 850nm VCSEL |
| Fiber Type | OM3 Multimode Fiber |
| Power Consumption | QSFP-DD: 8.5W / QSFP56: 5W each |
| Operating Temperature | 0°C to 70°C |
| Storage Temperature | -40°C to 85°C |
| Operating Humidity | 5% to 85% (non-condensing) |
| Voltage Supply | Single 3.3V |
| Compliance | MSA Compliant, TAA Compliant, RoHS Compliant, Lead-Free |
| Warranty | Limited Lifetime Warranty |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
