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400G QSFP DD DAC
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Adapter Details
Media Converter
400G QSFP-DD Optical Transceivers from China Suppliers - High-Performance Modules from a Leading Factory
Ordering Information
| P/N | Description | Data Sheet | Data Rate | Wavelength | Distance | Output Power (dBm) | Sensitivity (OMA) | Connector | Temp. (℃) | Laser Type |
|---|---|---|---|---|---|---|---|---|---|---|
| EQD400-SR8 | QSFP-DD SR8 | DOWNLOAD | 400G | 850nm | 100M | -8.4~4 | -3.4 | MPO | 0~70 | VCSEL+PIN |
| EQD400-DR4 | QSFP-DD DR4 | DOWNLOAD | 400G | 1310nm | 500M | -2.9~4 | -4.4 | MPO | 0~70 | EML+PIN |
| EQD400-FR4 | QSFP-DD FR4 | DOWNLOAD | 400G | 1310nm | 2KM | -3.3~3.5 | -2.6 | LC | 0~70 | ENL CWDM+PIN |
| EQD400-LR4 | QSFP-DD LR4 | DOWNLOAD | 400G | 1310nm | 10KM | -2.7~5.1 | -4.3 | LC | 0~70 | ENL CWDM+PIN |
| EQD400-LR8 | QSFP-DD LR8 | DOWNLOAD | 400G | 1310nm | 10KM | -2.8~5.3 | -7.1 | LC | 0~70 | EML+PIN |
Frequently Asked Questions
What is the main difference between 400G QSFP-DD SR8 and DR4 optical transceivers?
The primary differences lie in the wavelength, transmission distance, and fiber type. The SR8 module operates at 850nm over multi-mode fiber (MMF) for short distances up to 100m, while the DR4 module operates at 1310nm over single-mode fiber (SMF) for distances up to 500m.
Which connector types do these 400G QSFP-DD modules support?
The connector type depends on the specific model. The EQD400-SR8 and EQD400-DR4 modules utilize MPO connectors, whereas the EQD400-FR4, EQD400-LR4, and EQD400-LR8 modules utilize standard LC duplex connectors.
What are the operating temperature ranges for these transceivers?
All the listed QSFP-DD transceivers (SR8, DR4, FR4, LR4, and LR8) are designed for commercial-grade environments, supporting an operating temperature range of 0°C to 70°C.
How far can the 400G QSFP-DD LR4 and LR8 transceivers transmit data?
Both the EQD400-LR4 and EQD400-LR8 models support long-reach transmission distances up to 10KM over single-mode fiber (SMF), making them ideal for enterprise and data center interconnects.
What laser technologies are used in these 400G optical modules?
The short-reach SR8 module uses VCSEL lasers. The mid-to-long-reach modules (DR4, FR4, LR4, and LR8) utilize high-performance EML or ENL CWDM lasers paired with PIN photodetectors to ensure stable and high-speed signal integrity.
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