CFP (C form-factor pluggable) and CFP2 (C form-factor pluggable 2) are both types of optical transceiver modules commonly used in high-speed optical communication networks. The main difference between CFP and CFP2 lies in their form factors and physical sizes.

CFP modules were the first generation of form-factor pluggable modules designed to support high-speed data transmission. They have a larger form factor compared to CFP2 modules. CFP modules are typically used for data rates up to 100Gbps and provide a high level of performance and flexibility.
On the other hand, CFP2 modules are the second generation of form-factor pluggable modules and are designed to offer higher port density and increased capacity. They have a smaller physical size compared to CFP modules, allowing for more modules to be installed in the same space. CFP2 modules can support data rates up to 400Gbps or even higher.
In summary, the main difference between CFP and CFP2 modules is their physical size and capacity.
CFP modules are bigger in size and can handle data speeds of up to 100Gbps, while CFP2 modules are smaller and can handle higher data speeds of up to 400Gbps or even more.
The choice between CFP and CFP2 depends on the specific requirements of the optical communication network in terms of capacity, density, and available physical space.
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