Classified by rate: 100base (100M), 1000base (gigabit), 10GE for Ethernet applications; 155M, 622M, 2. According to package classification: 1x9, SFF, SFP, GBIC, XENPAK, XFPIn the vast ecosystem of network infrastructure, the humble 100M optical transceiver (or 100M SFP module) remains a critical workhorse for enterprise access layers, industrial networks, and legacy system upgrades. Choosing the right one, however, can be a complex puzzle of compatibility, fiber. The FS® 100BASE Small Form-Factor Pluggable (SFP) device (Figure 1) is a hot-swappable input/output device that plugs into Fast Ethernet ports, dual-rate Fast/Gigabit Ethernet ports, or Gigabit Ethernet ports of a FS switch or router, linking the port with the fiber cabling network. This article briefly introduces the knowledge of optical modules and optical fiber connectors 1. Classification of 100G Optical Modules by Transmission Distance Based on transmission distance, 100G optical modules are mainly. Currently, there are 6 main form factors of commonly used fiber optic transceivers: SFP+, SFP, GBIC, X2, XFP, XENPAK, and the increasingly popular QSFP+ (for 40Gbps) and CFP (for 100Gbps) transceivers. 25G SFP, 10G SFP+, 25G SFP28, 40G QSFP+, 100G QSFP28, 200G QSFP56, 400G OSFP, 800G OSFP etc. The QSFP 40G to QSFP-DD 400G transceiver are becoming increasingly popular. The most basic classification of fiber optic.