Key features:

Single-Mode (SM): This indicates the cable uses a single path for light, which is ideal for high-speed and long-distance data transmission. These cables typically have a yellow outer jacket.

LC/APC connectors:

LC: A small form-factor connector.

APC: An "Angled Physical Contact" connector with an 8° angle polish, which is a crucial feature for minimizing back reflection.

Application: Used to connect equipment like switches, routers, and servers in high-speed networks, data centers, and telecommunications systems.

Performance: The APC polish provides higher performance and lower insertion loss compared to UPC (Ultra Physical Contact) connectors, making it suitable for applications requiring high optical performance.

Compatibility: It is crucial to only connect APC connectors to other APC connectors to avoid significant signal loss caused by the mismatched angles.