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 |