| Part Number | ESWSLC31-K02C | Distance | 2km |
| Form Factor | QSFP-DD | Connector | duplex LC |
| Wavelength | 1310nm | Transmitter | EML |
| Receiver | PIN | Media | SMF |
| Power Consumption | <12W | Protocol | 400G Ethernet |
| Case Temperature(℃) | C: 0℃ to +70℃ |
Product Features
up to 425 Gbps aggregate bit rate
Up to 2 km transmission on single mode fiber with FEC
8x 53.125 Gbps PAM4 electrical interface (400GAUI-8)
4 CWDM lanes MUX/DEMUX design
400GE FR4 specification compliant
Non-hermetic package design
Maximum power consumption 12 W
LC duplex connector
Single 3.3V power supply
RoHS compliant
● 400Gb/s High-Speed Transmission
Supports 400G Ethernet applications with four optical lanes, meeting the growing bandwidth requirements of AI clusters, cloud computing, and large-scale data centers.
● QSFP-DD High-Density Form Factor
Uses the QSFP-DD interface, providing higher port density compared with traditional QSFP28/QSFP56 modules and enabling efficient rack space utilization.
● 2km Long-Reach Connectivity
Based on CWDM4 wavelength multiplexing technology, it supports up to 2km transmission over standard single-mode fiber, making it suitable for data center interconnect (DCI) applications.
● PAM4 Modulation Technology
Each channel uses 100G PAM4 signaling to achieve higher data rates while maintaining compatibility with existing optical infrastructure.
● Low Power Consumption & High Reliability
Optimized optical design provides low power consumption, stable performance, and reliable operation for high-density network environments.
● Hyperscale Data Centers
Used for high-speed connections between switches, servers, and storage systems in large cloud data centers.
● AI & High-Performance Computing (HPC)
Provides high-bandwidth interconnect solutions for AI training clusters, GPU computing platforms, and accelerated computing networks.
● Data Center Interconnect (DCI)
Supports medium-distance connections between data centers, enabling efficient and scalable network expansion.
● Enterprise & Cloud Networks
Provides reliable 400G optical connectivity for next-generation enterprise networks and cloud service infrastructures.
● 400G Ethernet Networks
Suitable for leaf-spine architectures, core networks, and high-capacity Ethernet switching environments.
ESOPTIC is equipped with a comprehensive range of professional testing equipment designed to assess various parameters of optical products.
This ensures the highest performance, quality, and stability of optical transmission in all of our products.
Put the qualified products into the corresponding model blister box packaging.
The bottom, surface and side of the carton are filled with one piece of anti-static foam to protect the product.According to the requirements of the packing quantity, put the blister box box of the product into the packaging carton. If the space between the blister boxes is large, use a piece of anti-static foam to put it in the middle. The empty space in the end box must be filled with anti-static foam to ensure that it will not be damaged during transportation.
The outer case label is attached to the side position of the outer case,Label the outer case after sealing.
At the time of delivery, the entire outer box should be wrapped with at least 2 layers of wrapping film protection.
