Description
The Edgecore ET7502-DR4 is a 400 Gbps QSFP-DD optical transceiver module engineered for high-performance data center and cloud network applications. Designed for 400 Gigabit Ethernet links over single-mode fiber up to 500 meters, it delivers reliable, low-latency connectivity across large-scale environments.
This transceiver features eight independent 50 Gbps (PAM4) electrical lanes that are converted into four parallel 100 Gbps optical channels operating at the 1310 nm wavelength. Compliant with IEEE 802.3bs and QSFP-DD MSA, the ET7502-DR4 supports seamless interoperability with next-generation 400 G infrastructures.
It offers power efficiency (< 10 W), integrated digital diagnostic monitoring (DDM), and CMIS 4.0 management, ensuring consistent performance, monitoring, and ease of integration in hyperscale or enterprise environments.
Ideal for data centers, 4×100G DR links, and InfiniBand interconnects, this module combines Edgecore’s engineering precision with robust reliability and full RoHS compliance.
| Specification | Details |
|---|---|
| Model | ET7502-DR4 |
| Form Factor | QSFP-DD (Quad Small Form-Factor Pluggable Double Density) |
| Data Rate | 400 Gbps aggregate (4 × 100 Gbps) |
| Electrical Interface | 8 × 53.125 Gbps (PAM4), compliant with 400GAUI-8 / IEEE 802.3bs |
| Optical Interface | 4 × 100 Gbps (PAM4) over 1310 nm wavelength |
| Connector Type | MPO-12 |
| Fiber Type | Single-Mode Fiber (SMF) |
| Reach/Distance | Up to 500 m |
| Power Supply | Single 3.3 V supply |
| Power Dissipation | < 10 W |
| Operating Temperature | 0 °C to 70 °C (Commercial) |
| Digital Diagnostics (DDM) | Supported via I²C interface (CMIS 4.0 or later) |
| Transmitter Type | 4 × CWDM EMLs |
| Receiver Type | PIN + TIA array |
| Optical Modulation | PAM4 |
| Average Launch Power (per lane) | –2.9 to +4 dBm |
| Receiver Sensitivity (OMAouter) | –4.4 dBm |
| Extinction Ratio | ≥ 3.5 dB |
| Connector Standard | QSFP-DD MSA compliant |
| RoHS Compliance | Yes |
| Applications | 400 GbE interconnects, 4×100G-DR links, Data centers, InfiniBand networks |
| Warranty | Standard Edgecore warranty (see edge-core.com for details) |
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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
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