Here are some of the most common types of network switches, with more info on each below:
KVM Switch.
Managed Switch.
Unmanaged Switch.
Smart Switch.
PoE Switch.

Role: Although both devices are used in Ethernet, they play different roles. Media converters are primarily used for signal conversion between different transmission media to establish connections. Fiber modems, on the other hand, are mainly used to connect devices to the internet for network access.

An optical transceiver is a small yet powerful device that can both transmit and receive data. In fiber optics, this data is sent in the form of pulses of light over an optical fiber, at very high speeds and across long distances.