Feature

CFP

CFP2

CFP4

Full Name

C Form-factor Pluggable

CFP2

CFP4

Size

Very Large

Medium 

Small

Port Density

Low

Medium

High

Max Data Rate

100G

100G / 200G

100G

Power Consumption

High(20–30W)

Medium (12–24W)

Low (~6–12W)

Technology Generation

1st Gen

2nd Gen

3rd Gen

Typical Use

Old systems

DWDM / Coherent

Data center / compact devices

Coherent Support

Yes

Yes (Most common )

Rare

Cooling Requirement

High

Medium

Low

Cost

High

Medium

Lower

Market Usage Today

Decreasing

Active (coherent)

Common (non-coherent)

 

 

Feature

Normal CFP

Coherent CFP

Technology

Direct Detect

Coherent Detection

DSP

No

Yes

Modulation

NRZ

QPSK / QAM

Distance

Short (2–10km)

Long (100–2000km+)

Wavelength

Fixed (LAN-WDM)

Tunable (DWDM)

Cost

Low

High

Complexity

Simple

Advanced