Q1: What is a 100G QSFP28 PSM4 2km transceiver?

A 100G QSFP28 PSM4 2km transceiver is a hot-pluggable optical module designed for 100GbE transmission over parallel single-mode fiber (PSM4). It delivers 100Gbps connectivity up to 2km using an MPO-12 interface.

Key features include:

• 100Gbps data rate

• PSM4 parallel optics

• Up to 2km over SMF

• MPO-12 APC connector

• QSFP28 hot-pluggable form factor

It is ideal for AI data centers, cloud computing, HPC, and enterprise networks.

Q2: How does a 100G QSFP28 PSM4 transceiver work?

The module converts electrical signals into 4×25G NRZ optical channels, transmitting them over four parallel single-mode fiber pairs through an MPO-12 connector. This parallel architecture provides high bandwidth with low latency for short- to medium-distance links.

Q3: What are the key features of the C-LIGHT 100G QSFP28 PSM4 2km transceiver?

The C-LIGHT module is designed for reliable high-density 100G networking.

Key features include:

• 100Gbps Ethernet transmission

• Up to 2km over SMF

• 4×25G NRZ channels

• MPO-12 APC interface

• QSFP28 MSA compliant

• Digital Diagnostic Monitoring (DDM)

• Power consumption <3.5W

These features provide stable and efficient optical connectivity for modern data centers.

Q4: What are the advantages of a 100G QSFP28 PSM4 transceiver?

Compared with duplex-fiber solutions, it offers:

• Parallel single-mode transmission

• Up to 2km reach

• High port density

• Low power consumption

• Cost-effective deployment where MPO fiber is available

It is an efficient solution for high-speed data center interconnects.

Q5: Where are 100G QSFP28 PSM4 transceivers commonly used?

These modules are widely deployed in high-speed optical networks.

Typical applications include:

• AI data centers

• Cloud computing

• High-Performance Computing (HPC)

• Spine-Leaf architectures

• Switch-to-switch links

• Enterprise data centers

These applications require reliable 100Gbps transmission over distances up to 2km.

Q6: Why choose a 100G QSFP28 PSM4 instead of a 100G CWDM4 module?

A 100G PSM4 module uses parallel single-mode fiber with an MPO connector, while a 100G CWDM4 module transmits over duplex LC fiber using wavelength multiplexing.

Its advantages include:

• Simple parallel optics

• No wavelength multiplexing

• Ideal for existing MPO infrastructure

• High-density cabling

• Excellent compatibility

It is ideal for data centers already deployed with parallel SMF cabling.

Q7: How do you choose the right 100G QSFP28 PSM4 transceiver?

When selecting a 100G PSM4 module, consider:

• Transmission distance

• Fiber type

• MPO connector compatibility

• Switch compatibility

• Power consumption

• IEEE/MSA compliance

Choosing the right module ensures reliable network performance and future scalability.

Q8: Why choose the C-LIGHT 100G QSFP28 PSM4 2km transceiver?

The C-LIGHT 100G QSFP28 PSM4 combines reliable 2km transmission, low power consumption, and high-density connectivity in a compact QSFP28 package.

It provides:

• 100Gbps bandwidth

• Up to 2km over SMF

• Parallel PSM4 optical technology

• Power consumption <3.5W

• Broad platform compatibility

It is an ideal solution for AI data centers, HPC clusters, cloud computing, and enterprise optical networks.