How to identify network cables: Comprehensive analysis of network cable types and purchasing guide
In today's digital age, network connectivity has become an integral part of daily life and work. Whether it is home broadband, enterprise LAN or data center, network cables are the physical media for network transmission, and their quality and type directly affect network performance. However, faced with the dazzling array of network cable products on the market, many consumers often don’t know how to choose. This article will explain in detail how to distinguish different types of network cables to help you make informed purchasing decisions.
1. Main types of network cables

Network cables are mainly divided into the following categories based on different transmission rates, frequency bandwidths and shielding methods:
| Type | Standard name | maximum transfer rate | frequency bandwidth | Common application scenarios |
|---|---|---|---|---|
| Cat5 | Category 5 | 100Mbps | 100MHz | Old home network, low-speed equipment |
| Cat5e | Category 5e | 1 Gbps | 100MHz | Home broadband, small business |
| Cat6 | Category 6 | 10 Gbps | 250MHz | Enterprise network, HD video transmission |
| Cat6a | Category 6a | 10 Gbps | 500MHz | Data centers, large enterprises |
| Cat7 | Category 7 | 10 Gbps | 600MHz | High performance network, professional applications |
| Cat8 | Category 8 | 40 Gbps | 2000MHz | Ultra-high-speed data center, future network |
2. How to distinguish the type of network cable
1.View skin markings: Regular network cables usually have type identification printed on the outer sheath, such as "Cat5e", "Cat6", etc.
2.Observe the thickness of the wire core: Generally speaking, the higher the grade of the network cable, the thicker the core. Cat6 and above network cable cores are significantly thicker than Cat5e.
3.Check shielding: Advanced network cables such as Cat6a and Cat7 usually have a metal shielding layer that can reduce electromagnetic interference.
4.Test transmission performance: Use a professional network tester to accurately measure the transmission rate and bandwidth of the network cable.
3. Network cable purchasing guide
There are several factors to consider when purchasing network cables:
| Considerations | Description | Recommended choice |
|---|---|---|
| Usage scenarios | Choose the appropriate type based on your network needs | Cat5e or Cat6 for homes, Cat6a for businesses |
| Transmission distance | Long-distance transmission requires higher-level network cables | Over 50 meters recommended Cat6 and above |
| future expansion | Consider the possibility of network upgrades | Reserve higher specification network cables |
| budget constraints | Balancing performance and cost | Cat5e is the most cost-effective |
| Brand reputation | Choose well-known brands with guaranteed quality | Anpu, CommScope, Huawei, etc. |
4. Frequently Asked Questions
Q: Are there any differences in the colors of network cables?
A: The color of the network cable itself does not affect performance. Different colors are mainly used to distinguish different network lines.
Q: How to distinguish authentic and fake network cables?
A: Genuine network cables have clear markings on the outer sheath, uniform core material, and are not easily deformed when bent; counterfeit products often have vague markings, thin cores and are easily broken.
Q: Can I make the network cable myself?
A: Yes, but it requires professional tools and skills. It is recommended that non-professionals purchase ready-made network cables.
5. Future development trends
With the development of technologies such as 5G, IoT and 8K video, the demand for network bandwidth will continue to grow. Cat8 network cables have begun to be used in high-end data centers, and higher-specification network cable standards may appear in the future. At the same time, optical fiber networks are gradually replacing traditional copper cables due to their higher transmission rates and longer transmission distances, especially in the backbone network and long-distance transmission fields.
In short, correctly identifying and selecting network cables is crucial to building a stable and efficient network environment. I hope this article can help you understand the characteristics and applicable scenarios of various network cables, and provide a reference for your network construction.
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