QSFp28 SR4 MPO Cable Overview and Applications

# QSFP28 SR4 MPO Cable Overview and Applications

## Introduction to QSFP28 SR4 MPO Cables

QSFP28 SR4 MPO cables are high-speed optical transceiver assemblies designed for data center and high-performance computing applications. These cables combine the QSFP28 form factor with SR4 (Short Range 4-channel) technology and MPO (Multi-fiber Push-On) connectors to deliver exceptional performance in short-reach optical communication.

## Technical Specifications

The QSFP28 SR4 MPO cable offers several key technical features:

– Data rate: 100Gbps (4×25Gbps)
– Wavelength: 850nm
– Maximum reach: 100 meters over OM4 multimode fiber
– Connector type: MPO-12 (for 4 transmit and 4 receive fibers)
– Compliance: IEEE 802.3bm, QSFP28 MSA
– Power consumption: Typically < 3.5W

## Key Advantages

QSFP28 SR4 MPO cables provide numerous benefits for modern network infrastructure:

• High-density connectivity in limited space
• Lower power consumption compared to alternative solutions
• Cost-effective 100G connectivity for short reaches
• Hot-pluggable for easy installation and maintenance
• Excellent signal integrity for reliable data transmission

## Common Applications

Data Center Interconnects

These cables are widely used in data centers for connecting switches, routers, and servers within the same rack or between adjacent racks.

High-Performance Computing

In HPC environments, QSFP28 SR4 MPO cables provide the necessary bandwidth for processor-to-processor communication and cluster interconnects.

Storage Area Networks

The cables serve as reliable connections between storage arrays and servers in SAN implementations.

Cloud Infrastructure

Cloud service providers utilize these cables for their high-density, high-bandwidth requirements in hyperscale data centers.

## Installation Considerations

When deploying QSFP28 SR4 MPO cables, consider the following:

• Ensure proper polarity (Type A, B, or C) matches your network design
• Verify fiber type (OM3 or OM4) matches the cable specifications
• Handle MPO connectors carefully to avoid contamination
• Follow bend radius guidelines to prevent signal degradation
• Use appropriate cable management to maintain airflow in racks

## Future Outlook

As data rates continue to increase, QSFP28 SR4 MPO cables remain a vital component in 100G networks. Their cost-effectiveness and reliability ensure they will maintain relevance even as 400G solutions become more prevalent, particularly for short-reach applications where their performance characteristics are ideal.

The evolution of parallel optics technology will likely bring enhancements to future versions of these cables, potentially increasing their reach or reducing power consumption while maintaining backward compatibility with existing infrastructure.