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What Is an Ethernet Cable and Why Is It Used?
Ethernet is an Internet technology that facilitates the connection between different devices on a single network. An Ethernet cable, also referred to as a network cable, is a type of cable used to connect computers, routers, switches, and other devices within a local area network (LAN). Plugging this cable in allows data to travel directly between connected devices via a unique language known as a protocol.
How to Choose an Ethernet Cable for Your Network
If you are buying an Ethernet cable for the first time, focus on these several features and you'll make a good decision.
What Cat Cable Do You Need?
Your choice of the Ethernet cable can affect how your network functions. This table compares the speeds and benefits of various Ethernet connections.
Category
Max. Data Rate
Bandwidth
Max. Distance
Usage
Best For
Cat5e
1,000Mbps (1Gbps)
100MHz
100m (328ft)
100Mbps Ethernet, residential homes
Those with standard Internet plans looking for an affordable upgrade
Cat6
10,000Mbps (10Gbps)
250MHz
1Gbps at 100m (328ft)
10Gbps at 37m (121ft)
Gigabit Ethernet, commercial buildings
Those looking to improve network stability
Cat6a
10,000Mbps (10Gbps)
500MHz
100m (328ft)
Gigabit Ethernet in data centers and commercial buildings
Those with Internet speeds exceeding 1Gbps looking for an Ethernet cable that won’t be outdated in the next several years
Cat7
10,000Mbps (10Gbps)
600MHz
100m (328ft)
10Gbps core infrastructure
Those looking for faster data transfers
Cat8
25Gbps (Cat8.1)
40Gbps (Cat8.2)
2000MHz
30m (98ft)
25Gbps/40Gbps core infrastructure
Those looking for a viable solution to support data centers and server rooms
Frequently Asked Questions