Network cable is an essential accessory in the network, and it is also an accessory that is easily overlooked. The speed for network cable connecting to the equipment will be hindered suppose pick an unsuitable cable. For example, the router is gigabit and the broadband at home is 200Mbps, chosen a 100 megabyte cable and the network speed will be 100Mbps only, makes the network cable the bottleneck in the entire network.

The current network cables are mainly divided into: At present, the common network cables including: category 5 enhanced (CAT 5E in short), category 6 (CAT 6), category 6 augmented (CAT 6A), category 7 (CAT 7), category 7 augmented (CAT 7A), and category 8 network cables (CAT 8).

In a typical household environment, both CAT 5E and CAT 6 support up to 10 Gigabit. The higher the level brings more stable performance. CAT 7 and CAT 8 are rarely seen in our daily life.

Category 7 features CAT7 on its PVC outer sheath. 600MHz transmission frequency , 10Gbps transmission rate, and it supports 10 Gigabit networks.

Category 7A features CAT7A on its PVC outer sheath. 1000MHz transmission frequency , 10Gbps transmission rate, and it supports 10 Gigabit networks.

CAT 7 cable is an 8-core shielded wire, quite is different from ordinary shielded wires. There is shielding layer (usually made of metal foil ) for each pair of wires, and a common large shielding layer (usually metal braided shield) for 4 combined wire pairs.

CAT 7 cable shares the same interface as RJ-45, transmission frequency is up to 600MHz, 1000MHz transmission frequency.

CAT 8 is double-layer shielded (SFTP) cable with two wire pairs, same as CAT 7. It has a 2000MHz ultra-high widescreen and a transmission rate of up to 40Gb/s. However, its maximum transmission distance is only 30m, so it is generally used for connecting servers, switches, distribution racks and other equipment in short distance data centers.

Short transmission distance as CAT 8 delivers, however, its transmission rates and frequency bandwidth far exceed those of other types, thus it is mainly used as a jumper cable for interconnecting network devices.