PON (Passive Optical Network) SFP (Small Form-Factor Pluggable) is a type of fiber optic transceiver that is used to connect network devices to fiber optic cables in a Passive Optical Network (PON) system. PON is a type of network architecture that is used to deliver high-speed internet and other telecommunications services to customers over a fiber optic network.

PON SFP transceivers are typically used to connect network devices such as switches, routers, and other optical networking equipment to fiber optic cables in a PON system. They are designed to support data rates of up to 2.5 gigabits per second (Gbps) in both directions, allowing them to transmit and receive data over a single fiber optic cable. PON SFP transceivers are available in a variety of different form factors, including SFP+, XFP (10 Gigabit Small Form-Factor Pluggable), and others, and can be used with a variety of different fiber optic cables.

PON SFP transceivers are an attractive choice for network administrators who need to be able to easily connect and disconnect devices, or change the type of fiber optic cable being used, without having to replace the entire device. They are also useful in applications where space is limited, as they are small and compact, and can be easily installed in a variety of different networking environments.