Shielded Cat 7 Ethernet Cables vs. Unshielded Cables- What’s the Difference？
Shielded Cat 7 Ethernet Cables vs. Unshielded Cables: What’s the Difference?
In the realm of networking, the choice between shielded and unshielded Ethernet cables often arises. While both serve the purpose of connecting devices, their design and performance capabilities differ significantly. This article delves into the key aspects to consider when choosing between shielded Cat 7 Ethernet cables and unshielded cables.
Shielding and Electromagnetic Interference (EMI)
Shielded Cat 7 Cables
Shielded Cat 7 cables feature an additional layer of shielding, typically made of aluminum foil or braided mesh, which surrounds the twisted pairs of conductors. This shielding is designed to protect against electromagnetic interference (EMI), which can disrupt data transmission. EMI can originate from various sources, such as fluorescent lighting, power lines, and other electronic devices.
Unshielded Cat 7 Cables
Unshielded Cat 7 cables do not have any external shielding. This makes them more susceptible to EMI and can lead to performance degradation in environments with high levels of electromagnetic noise.
Transmission Speed and Bandwidth
Shielded and Unshielded Cat 7 Cables
Both shielded and unshielded Cat 7 Ethernet cables support transmission speeds of up to 10 Gbps (gigabits per second) and a maximum bandwidth of 600 MHz. This high-speed performance makes them suitable for bandwidth-intensive applications such as streaming video, gaming, and large file transfers.
Cable Flexibility and Bend Radius
Shielded Cat 7 Cables
Shielded Cat 7 cables tend to be thicker and less flexible than unshielded cables due to the presence of the shielding layer. This can make them more challenging to route and install in tight spaces.
Unshielded Cat 7 Cables
Unshielded Cat 7 cables are more flexible and have a smaller bend radius, making them easier to bend and install in complex environments where space is limited.
Price and Availability
Shielded Cat 7 Cables
Shielded Cat 7 cables are generally more expensive than unshielded cables due to the added cost of the shielding material. They may also be less readily available as they are not as widely used as unshielded cables.
Unshielded Cat 7 Cables
Unshielded Cat 7 cables are more cost-effective and widely available. They are suitable for most residential and small business networking applications.
Which Cable Type to Choose?
The choice between shielded and unshielded Cat 7 Ethernet cables depends on the specific requirements of your application. If EMI is a concern or your environment is prone to electromagnetic noise, then a shielded Cat 7 cable is recommended. However, if you are operating in a low-EMI environment and require flexibility and ease of installation, then an unshielded Cat 7 cable is a more cost-effective option.