Home » Applications » Telecom & Networking Equipment » Optical Modules (QSFP+/28/56/DD, CFP2-DCO) Optical modules are not “just optics”: they are tightly-coupled electrical recovery/equalization, optics bias/monitoring, and power/thermal control in a pluggable package. A CFP optical module is a high-speed pluggable transceiver used in fiber optic communication systems to enable 100 Gigabit Ethernet (100G) data transmission over optical fiber. The term “C form-factor pluggable” refers to the specific form factor and electrical interface of these modules, ensuring. The CFP standard defines a pluggable optical transceiver form factor capable of supporting 40G and 100G Ethernet, OTN (Optical Transport Network), and SONET/SDH protocols. The acronym "CFP" represents the Roman numeral "C" (100), aligning it with 100 Gigabit Ethernet. Developed collaboratively. Cisco offers a comprehensive range of pluggable optical modules in the Cisco ONS pluggables portfolio. Cisco offers a range of GBIC, SFP, XFP, SFP+, CXP, CFP, Cisco CPAK, and QSFP+ pluggable. The C form-factor pluggable (CFP, 100G form factor pluggable, where C is Latin: centum "hundred") is a multi-source agreement to produce a common form-factor for the transmission of high-speed digital signals.