Cisco Compatible 400GBASE-ER4 QSFP-DD 400G 1310nm 40km DOM LC SMF Transceiver Module
#201101
SKU: 400G-QDD-ER4
1 Reviews
Transceiver Types:
Stock:
3000 in stock
Total Price:
$3299
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Free shipping for orders over $99
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Available for delivery within 2 days
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3-year warranty
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30-day return and refund
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Lifetime technical support
Products Highlight
- Max Power Consumption < 10W
- Compliant with Hot Pluggable QSFP-DD MSA, CMIS 5.2 Standard
- High-speed Connectivity Compliant to IEEE 802.3db
- Complies with Class 1 FDA Laser Safety Standards
- Compliant with RoHS Environmental Protection Standards (Lead-Free)
- Supports Digital Diagnostic Monitoring Functionality
- After Rigorous Quality Control and Stability Testing
- Specifications
- Features
- Applications
- Testing
- Resources
- FAQs
- Reviews
Specifications
Product Certification
Features
The 400G-QDD-ER4 is a high-performance, single-mode optical transceiver module designed for 400 Gigabit Ethernet applications. It supports data rates of up to 425 Gbps and is optimized for extended-reach communication, with a maximum transmission distance of up to 40 kilometers over single-mode fiber (SMF). This QSFP-DD module operates at a wavelength of 1310nm and utilizes a duplex LC interface, making it ideal for high-speed data center interconnects (DCI), enterprise networks, and telecommunications infrastructure. The module is fully compliant with industry standards, including IEEE 802.3bs, CMIS4.0, and QSFP-DD MSA, ensuring reliable and efficient data transmission.
Applications
400G Direct Connection

Quality Testing Program
01. Product Hardware
02. Compatibility Testing
03. Quality Control
Model Comparison
Form Factor | QSFP-DD | QSFP-DD | QSFP-DD |
Max Data Rate | 425Gbps | 425Gbps | 425Gbps |
Wavelength | 1310nm | 1310nm | 1310nm |
Max Cable Distance | 40km | 10km | 2km |
Media | SMF | SMF | SMF |
Connector | Duplex LC | Duplex LC | Duplex LC |
Transmitter Type | LWDM EML | CWDM EML | CWDM EML |
Receiver Type | SOA PIN | PIN | PIN |
Resource
FAQs
Can 400G ER4 be interconnected with 100G ER4?
Compared to the 400G LR4 module, does the ER4 exhibit significantly increased power consumption?
Can the module operate normally under extreme environmental conditions (such as high humidity or strong electromagnetic interference)?
Does the module support breakout mode? For example, splitting into two 200G links?
Customer Reviews
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Using these modules for a long-distance backbone link. They deliver consistent throughput, low error rates, and stable temperatures. Definitely a reliable choice for high-capacity networks.