An optical transceiver is a crucial component in modern communication systems. It transmits and receives data using optical signals, ensuring high-speed data transfer. The key features of an optical transceiver include data rates, wavelengths, and protocols that match network requirements. It integrates a laser diode for sending signals and a photodiode for receiving. Form factors vary to fit different hardware, such as SFP, QSFP, and CFP. Proper installation and alignment are essential for optimal performance. The reliability and efficiency of an optical transceiver significantly impact overall network performance, making it a vital element in fiber optic communications.