400G & 800G Series
400G and 800G QSFP-DD optical transceiver series, including DR4, LR8, ER8, DR8 and 2xFR4 options. Match the part number to the required wavelength and distance.
Category: Optical Transceiver
Key Features
- QSFP-DD form factor for 400G and 800G options.
- 400G DR4 at 1310 nm for 500 m, LR8 and ER8 at 1272–1310 nm.
- 800G DR8 at 1310 nm for 500 m.
- 800G 2xFR4 at 1271–1331 nm for 2 km.
Technical Specifications
| Parameter | Specification |
|---|---|
| Form Factor | QSFP-DD |
| Data Rate | 400G / 800G |
| Series | QD4H / QD8H |
Listed Model Variants
| Part No. | Description | Wavelength | Distance |
|---|---|---|---|
| QD4H-DR405 | QSFP-DD DR4 | 1310nm | 500m |
| QD4H-LR810 | QSFP-DD LR8 | 1272-1310nm | 10km |
| QD4H-ER840 | QSFP-DD ER8 | 1272-1310nm | 40km |
| QD8H-DR805 | QSFP-DD DR8 | 1310nm | 500m |
| QD8H-2FR42L | QSFP-DD 2xFR4 | 1271-1331nm | 2km |
Specifications and variant information reflect the published catalog. Confirm the exact model, optional features and compatibility with FOT before ordering.
Typical Applications
400G and 800G links where the host accepts a QSFP-DD module and the listed reach matches the span.
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Equipment Buyer Questions
What is 400G & 800G Series used for?
400G and 800G links where the host accepts a QSFP-DD module and the listed reach matches the span.
Which specifications should I check for 400G & 800G Series?
The listed specifications include Form Factor: QSFP-DD; Data Rate: 400G / 800G; Series: QD4H / QD8H. Review the complete table and confirm your required configuration with FOT.
Is compatibility with my existing network guaranteed?
Compatibility depends on your existing equipment, firmware, interfaces and service configuration. Share your OLT/ONT or network equipment models with FOT for confirmation before deployment.
How can I request a quote for 400G & 800G Series?
Email sales@fiberoptictel.com with the product name, quantity and required configuration. Ask for confirmation of pricing, availability and lead time.