A network cable is essentially "the wire of the online world", mainly used to connect devices such as computers, routers, and switches, enabling them to communicate and access the internet stably with each other.
I. Main Uses of Network Cables
The scenarios that one comes across daily are basically all inseparable from network cables:
Connecting computers to the internet
Computer → Network cable → Router / Optical Modem → Internet, which is more stable and has lower latency than Wi-Fi.
Setting up a Local Area Network (LAN)
Multiple computers, printers, servers accessing each other, transferring files, and sharing printers, connected by network cables to form an internal network.
Connecting routers, switches, optical modems, etc.
Optical Modem → Router → Switch → Network ports in each room, using network cables to "string" these devices together to expand network ports and coverage.
IPTV Internet access for TV
Many operators' set-top boxes require network cables to connect to optical modems / routers in order to watch high-definition TV and access on-demand programs.
Connecting surveillance cameras
Network cameras and NVR recorders are usually connected by network cables, which can both transmit data and supply power (PoE), making wiring simpler.
High-speed networks in enterprises, internet cafes, and computer rooms
Large amounts of data transmission between servers and switches, using high-quality network cables (such as Category 6, Super Category 6) to ensure high bandwidth and low latency.
II. Advantages of Network Cables Compared to Wi-Fi
In many scenarios, network cables are still indispensable:
More stable speed, less prone to dropping
Lower latency, suitable for gaming and video conferences
Less susceptible to interference (walls, microwave ovens, Bluetooth, etc.)
Better security, less prone to (sharing internet) and eavesdropping
