Ethernet Cables Buying Guide

Ethernet cables are an essential component of any home or office network. They connect devices such as computers, printers, servers, routers, and switches to each other and to the internet. Choosing the right Ethernet cable can significantly impact the performance and reliability of your network. In this guide, we will cover everything you need to know about Ethernet cables, including types, categories, lengths, speeds, and more.

Types of Ethernet Cables

There are several types of Ethernet cables, each with different connector types and applications. The most common types of Ethernet cables are:

• Category 5 (Cat 5): This is the oldest and slowest category of Ethernet cables, with a maximum speed of 100 Mbps. It uses an RJ-45 connector and is suitable for home networks and basic internet usage.
• Category 5e (Cat 5e): This is an enhanced version of Cat 5, with a maximum speed of 1 Gbps. It uses an RJ-45 connector and is suitable for home networks, small businesses, and basic video streaming and gaming.
• Category 6 (Cat 6): This is a superior version of Cat 5e, with a maximum speed of 10 Gbps. It uses an RJ-45 connector and is suitable for large networks, enterprises, and high-speed applications such as 4K video streaming and online gaming.
• Category 6a (Cat 6a): This is an enhanced version of Cat 6, with a maximum speed of 10 Gbps at a longer distance than Cat 6. It uses an RJ-45 connector and is suitable for large networks, data centers, and high-speed applications such as video editing and graphics design.
• Category 7 (Cat 7): This is a high-end version of Ethernet cables, with a maximum speed of 10 Gbps and shielded twisted pairs. It uses a GG45 or TERA connector and is suitable for industrial, medical, and military environments where electromagnetic interference (EMI) and signal loss are critical.

Ethernet Cable Categories

Ethernet cables are categorized according to their performance and specifications, as defined by the Telecommunications Industry Association (TIA) and the International Organization for Standardization (ISO). The categories are:

• Category 3 (Cat 3): This is an old, obsolete category that supports speeds up to 10 Mbps and is used for phone and fax lines.
• Category 5 (Cat 5): This is the most common category that supports speeds up to 100 Mbps and is used for basic internet usage.
• Category 5e (Cat 5e): This is an enhanced version of Cat 5 that supports speeds up to 1 Gbps and is used for small businesses and basic video streaming and gaming.
• Category 6 (Cat 6): This is a superior version of Cat 5e that supports speeds up to 10 Gbps and is used for large networks and high-speed applications such as 4K video streaming and online gaming.
• Category 6a (Cat 6a): This is an enhanced version of Cat 6 that supports speeds up to 10 Gbps at a longer distance than Cat 6 and is used for large networks and high-speed applications such as video editing and graphics design.
• Category 7 (Cat 7): This is a high-end category that supports speeds up to 10 Gbps and is used for industrial, medical, and military environments where EMI and signal loss are critical.

Note that higher categories are backward compatible with lower categories, but not vice versa. For example, a Cat 6 cable can be used for a Cat 5e application, but a Cat 5e cable cannot handle a Cat 6 application.

Ethernet Cable Lengths

Ethernet cables come in various lengths, ranging from a few inches to hundreds of feet or even longer. The length of an Ethernet cable can affect its performance, as longer cables can introduce more signal loss and interference. The maximum length of an Ethernet cable depends on its category and speed. The following table summarizes the maximum lengths of different Ethernet cables:

Category	Speed	Maximum Length
Cat 5	100 Mbps	100 meters or 328 feet
Cat 5e	1 Gbps	100 meters or 328 feet
Cat 6	10 Gbps	55 meters or 180 feet
Cat 6a	10 Gbps	100 meters or 328 feet
Cat 7	10 Gbps	100 meters or 328 feet

Keep in mind that the actual length of a cable may be shorter than the labeled length, as some cables may have additional connectors or packaging that add to the overall length. Moreover, it is recommended to avoid kinking or twisting cables, as this can cause damage or signal degradation. Finally, it is advisable to label or color-code cables, especially in complex networks, to make them easier to identify and troubleshoot.

Ethernet Cable Speeds

Ethernet cables are rated according to their speed, which refers to the maximum data transfer rate they can support. The most common Ethernet cable speeds are:

• 100 Mbps (Fast Ethernet): This is the minimum speed for most home and office networks, and is supported by Cat 5 and higher cables.
• 1 Gbps (Gigabit Ethernet): This is ten times faster than Fast Ethernet, and is supported by Cat 5e and higher cables.
• 10 Gbps (10 Gigabit Ethernet): This is a hundred times faster than Fast Ethernet, and is supported by Cat 6 and higher cables, although Cat 6 cables can only handle 10 Gbps up to 55 meters.

It is important to note that the cable speed does not guarantee the actual network speed, which depends on multiple factors such as device capabilities, network topology, and bandwidth allocation. For example, using a Cat 6 cable for a network that only supports 100 Mbps will not improve the speed, but may increase the cost and complexity. Therefore, it is advisable to match the cable speed with the network speed and the device requirements.

Ethernet Cable Connectors

Ethernet cables use specific connectors that match the type and category of the cable. The most common Ethernet cable connectors are:

• RJ-45: This is the standard connector for most Ethernet cables, including Cat 5e, Cat 6, and Cat 6a. It has eight pins and can handle speeds up to 10 Gbps.
• GG45: This is a high-end connector for Cat 7 cables, and has eight twisted pairs instead of four. It can handle speeds up to 40 Gbps, but is not compatible with RJ-45 connectors.
• TERA: This is another high-end connector for Cat 7 cables, and has a shielded design that reduces EMI and crosstalk. It can handle speeds up to 40 Gbps, but is not compatible with RJ-45 connectors.
• M12: This is a rugged connector for harsh environments, such as factories and military applications. It has four or eight pins and can handle speeds up to 10 Gbps, but is not compatible with RJ-45 connectors.

It is important to use the correct connector for the cable type and category, as using a mismatched connector can damage the cable or the device, or reduce the performance. Moreover, it is recommended to use quality connectors that are certified by the TIA or other standard organizations, to ensure that they meet the required specifications for signal integrity and durability.

Ethernet Cable Colors

Ethernet cables come in various colors, although the color does not affect their performance or specifications. The most common colors of Ethernet cables are:

• Blue: This is the standard color for Cat 5 and Cat 5e cables.
• Yellow: This is the standard color for Cat 6 cables.
• Red: This is a common color for Cat 6a cables.
• Black: This is a common color for Cat 7 cables.
• Green, orange, and white: These are alternative colors for Ethernet cables, and may be used for labeling, identification, or aesthetic purposes.

Keep in mind that the color of the cable does not affect its compatibility or usability, but may help to distinguish it from other cables, especially in crowded or dark environments. Moreover, some cable manufacturers may offer custom colors or designs, although these may come at a premium price.

Ethernet Cable Brands

Ethernet cables are manufactured by many brands, ranging from well-known ones to lesser-known ones. Some of the most popular Ethernet cable brands are:

• Belkin: This is a well-established brand for networking and connectivity products, including Ethernet cables of various types and lengths.
• Monoprice: This is a budget-friendly brand for electronics and accessories, including Ethernet cables of various categories and colors.
• Mediabridge: This is a quality-oriented brand for audio/video cables and accessories, including Ethernet cables of various categories and lengths.
• D-Link: This is a reputable brand for networking and connectivity products, including Ethernet cables of various types and speeds.
• AmazonBasics: This is Amazon's own brand for a wide range of products, including Ethernet cables of various categories, lengths, and colors.

Keep in mind that the brand name does not necessarily indicate the quality or suitability of the Ethernet cable, and that lower-priced or lesser-known brands may offer comparable or even superior products to higher-priced or well-known ones. Moreover, some Ethernet cables may be labeled as OEM (Original Equipment Manufacturer), which means they are produced by a third-party manufacturer but sold under a different brand name. Finally, it is advisable to check the warranty and return policy of any Ethernet cable before purchasing, to ensure that it meets your expectations and requirements.

Ethernet Cable Accessories

Ethernet cables may require some accessories to enhance their performance or usability. Some of the most common Ethernet cable accessories are:

• Wall plates and jacks: These are used to mount Ethernet cables on walls, ceilings, or floors, and to connect them to devices such as switches or routers.
• Crimpers and strippers: These are used to cut, strip, and crimp Ethernet cables, especially when customizing their lengths or connectors.
• Couplers and adapters: These are used to connect two or more Ethernet cables together, or to convert one connector type to another.
• Cable ties and clips: These are used to bundle and organize Ethernet cables, especially when routing them through tight spaces or cable trays.
• Cable testers and analyzers: These are used to diagnose and troubleshoot Ethernet cables, especially when trying to detect signal loss or interference.

It is important to use compatible and reliable accessories for Ethernet cables, and to avoid using low-quality or mismatched ones that may cause damage or signal degradation. Moreover, it is advisable to follow the instructions or guidelines of any accessory, and to perform any installation or maintenance tasks carefully and safely.

Ethernet Cable Prices

Ethernet cables come in various prices, depending on their type, category, length, speed, brand, and accessories. The most common price ranges for Ethernet cables are:

• Under $5: These are usually basic Cat 5 or Cat 5e cables that are a few feet long and have standard RJ-45 connectors. They are suitable for short-term or low-speed applications, such as temporary connections or troubleshooting.
• $5 to $20: These are usually mid-range Cat 5e or Cat 6 cables that are up to 50 feet long and have standard or enhanced RJ-45 connectors. They are suitable for home or small business networks, and basic applications such as internet browsing or emailing.
• $20 to $50: These are usually high-end Cat 6 or Cat 7 cables that are up to 100 feet long and have enhanced or specialized connectors. They are suitable for large networks, high-speed applications such as 4K video or gaming, and environments where EMI or signal loss are critical.
• Above $50: These are usually custom or bulk orders of Ethernet cables that require special lengths, colors, or connectors, or that involve high-end features such as shielding or testing. They are suitable for specific or complex applications, and may be offered by specialized or niche providers.

It is important to balance the price and quality of Ethernet cables, and to avoid overpaying for unnecessary features or specifications. Moreover, it is advisable to compare the prices and offerings of different brands and retailers, and to look for discounts or promotions that may lower the cost. Finally, it is recommended to check the quality and warranty of any Ethernet cable before purchasing, and to be cautious of deals that seem too good to be true.

Conclusion

Ethernet cables are essential components of any home or office network, and play a critical role in the performance and reliability of the network. Choosing the right Ethernet cable requires understanding the types, categories, lengths, speeds, connectors, colors, brands, and accessories, as well as considering the application, budget, and preferences. By following the guidelines and recommendations in this guide, you can make an informed decision on which Ethernet cable to buy, and enjoy a seamless and efficient network experience.