Cisco Compatible 400G QSFP-DD QDD ER8 Optical Transceiver
Designed for 400G Ethernet data center and cloud network environments, the Cisco Compatible 400G QSFP-DD QDD ER8 Optical Transceiver provides 425Gbps throughput in a QSFP-DD form factor. It operates at 1310nm over SMF through a Duplex LC/UPC connector and supports link lengths up to 40km. The module meets QSFP-DD MSA Compliant and includes digital diagnostic monitoring for live status readout.
Product Highlights
- QSFP-DD form factor, 425Gbps data rate
- Wavelength: 1310nm
- Connector: Duplex LC/UPC
- Reach: up to 40km
- Fiber media: SMF
- DDM/DOM: Supported
Specifications
| Part Number | QDD-ER8-400G |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD |
| Max Data Rate | 425Gbps |
| Wavelength | 1310nm |
| Max. Cable Distance | 40km |
| Connector | Duplex LC/UPC |
| Media | SMF |
| Transmitter Type | LWDM EML |
| Receiver Type | APD |
| TX Power | -0.6~5.6dBm |
| Minimum Receiver Power | -16.1dBm(SECQ–17.5dBm) |
| Power Budget | 15.5dB |
| Receiver Overload | -3.4dB |
| Max. Power Consumption | 14W |
| Extinction Ratio | 6dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 8x50G-PAM4 |
| Modulation (Optical) | 8x50G-PAM4 |
| DSP | TX and RX |
| Host FEC | Supported |
| Protocols | QSFP-DD MSA Compliant |
Applications
Network architects choose the Cisco Compatible 400G QSFP-DD QDD ER8 Optical Transceiver for 400G Ethernet data center and cloud network environments: it runs 425Gbps over SMF and reaches 40km. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. Our factory programs the compatibility coding for your switch brand before shipment and verifies each unit on real host equipment. The link runs 8x50G-PAM4 modulation, which keeps it aligned with current 400G switch silicon.
Standards and Compatibility
This product is designed and tested to comply with QSFP-DD MSA Compliant. It plugs into any standards-based QSFP-DD port, and compatibility coding for specific switch or router brands can be done in our factory before shipment.
Ordering Information
Order this product as QDD-ER8-400G. Common models are stocked for fast dispatch. We can supply the module with neutral or customer-branded labels, and compatibility coding for a specific equipment vendor can be added at no extra process step.
How We Pack
Transceivers and cables are individually protected against static and dust, then consolidated into sturdy cartons suitable for international courier shipment. For larger orders we shrink-wrap and strap cartons onto pallets. Tell us your warehouse or retail requirements and we will pack accordingly.
Customization Service
Because we are the factory, customization is straightforward: non-standard lengths, different jacket materials, specific polarity or breakout wiring, and compatibility programming for particular switch brands are all routine work for us. Small trial orders are accepted so you can verify quality before scaling up.
Shipping and Lead Time
Standard products are held in stock and usually ship within one to three working days. We dispatch worldwide by DHL, UPS, FedEx, TNT or EMS, and for bulk orders we arrange air or sea freight. Shipments can also be sent collect on your own courier account or delivered to your freight forwarder.
Reliability Control
From incoming component inspection to final burn-in, quality is controlled at each step of production. Finished units are verified on real networking equipment in our compatibility lab, and test records are kept per batch so that any field question can be traced back quickly.
