How Much Is a 20 Meter Ethernet Cable?

Shopping for a 20-meter Ethernet cable can be confusing. The same length is sold in Cat5e, Cat6, Cat6A, Cat7, and Cat8 versions, in shielded and unshielded designs, and for indoor or outdoor use, with prices that vary widely. Knowing what each option offers helps you pay for the performance you actually need.

For simple device connections, a pre-made cable is usually all you need. For permanent runs inside walls and ceilings, the cable choice is often guided by a Network Cabling Company Torrance, CA homes and businesses rely on to install and certify the right product.

This guide compares prices for 20-meter Ethernet cables by category, explains which category makes sense for different devices, covers shielded and outdoor options, and shows you how to spot a low-quality cable before you buy.

Table of Contents

• How Much Is a 20 Meter Ethernet Cable? The Short Answer
• 20 Meter Ethernet Cable Prices by Category
• Which Category Should You Choose at 20 Meters?
• Shielded vs. Unshielded Cable at 20 Meters
• Indoor, Outdoor, and Direct-Burial Versions
• Online vs. In-Store Prices
• Signs a Cheap 20 Meter Cable Is Low Quality
• Matching the Cable to Your Device
• Choosing a 20 Meter Cable for Torrance Homes and Businesses
• Conclusion
• Frequently Asked Questions

How Much Is a 20 Meter Ethernet Cable? The Short Answer

A 20-meter Ethernet cable, about 66 feet long, typically costs about $8 to $50 depending on category and construction. Most buyers will find the best value in a Cat6 cable, which commonly costs about $10 to $30 from a reputable brand. Cat5e is often slightly less expensive, while Cat6A, shielded, outdoor-rated, and Cat8 cables cost more.

These are approximate U.S. prices for budgeting only. Actual prices vary by brand, retailer, and market conditions, including changes in copper prices and import costs.

20 Meter Ethernet Cable Prices by Category

The table below shows approximate price ranges for pre-made cables of about 20 meters from reputable brands. In the United States, you may see this length listed as 65 feet, 75 feet, or in metric sizes.

Cable Type (about 20 meters)	Approximate Price Range	Best For
Cat5e	$8 to $25	Basic Gigabit connections
Cat6	$10 to $30	Best value for most homes and offices
Cat6A	$15 to $45	High-power PoE, multi-gigabit, and future upgrades
Cat7 (as sold to consumers)	$15 to $40	Rarely recommended; not a TIA-recognized category
Cat8	$20 to $50	Data center links; little benefit for home use
Shielded Cat6 (F/UTP or S/FTP)	$12 to $40	High-interference environments with grounded equipment
Outdoor-rated Cat6	$15 to $40	Exterior runs and outdoor cameras

Which Category Should You Choose at 20 Meters?

Cat5e

Cat5e supports Gigabit Ethernet and 2.5 Gbps speeds under IEEE 802.3bz. It is fine for basic internet connections, but because Cat6 costs only slightly more, Cat5e is rarely the best value for new purchases.

Cat6

Cat6 is the best choice for most people. At 20 meters, it supports Gigabit, 2.5 Gbps and 5 Gbps multi-gigabit speeds, and 10 Gigabit Ethernet, since its 10 Gigabit range extends to about 55 meters. It also supports Power over Ethernet (PoE) for cameras, phones, and access points.

Cat6A

Cat6A offers extra performance headroom, better resistance to interference between cables, and improved handling of high-power PoE. It is a strong option for Wi-Fi 7 access points, high-power PoE devices, and anyone planning for future upgrades, though it is thicker and costs more.

Cat7

Cat7 is an ISO/IEC classification that is not recognized by the TIA standards used in North America. True Cat7 systems were designed around special connectors, so many consumer cables labeled Cat7 that use standard RJ45 plugs do not deliver genuine Cat7 performance. In most cases, Cat6A is a better choice.

Cat8

Cat8 is designed for data center connections of up to 30 meters at 25 or 40 Gbps. A 20-meter Cat8 cable is within that limit, but home and office equipment rarely uses those speeds, and many consumer Cat8 cables are not independently verified. For most users, Cat8 adds cost without adding real benefit.

Shielded vs. Unshielded Cable at 20 Meters

Unshielded twisted pair (UTP) cable relies on the twisting of wire pairs to reduce interference, and it works well in most homes and offices. Shielded cable, such as F/UTP or S/FTP, adds foil or braided shielding to block outside electrical noise.

Shielded cable costs more and is thicker and less flexible. To work as intended, the shield must be connected to grounded equipment or shielded jacks at both ends. When shielded cable is plugged into ordinary unshielded equipment, much of the shielding benefit is lost. Shielded cable is most useful in environments with heavy electrical interference, such as near industrial machinery.

Indoor, Outdoor, and Direct-Burial Versions

• Indoor patch cables: Designed for connections inside the home or office, such as between a router and a TV or computer.
• Outdoor-rated cables: Use UV-resistant jackets that hold up to sunlight and weather, making them suitable for exterior walls and outdoor cameras.
• Direct-burial cables: Add water-blocking materials and tougher jackets for underground runs, although installing cable in conduit provides extra protection.

Standard indoor cables should not be used outdoors, since sunlight and moisture can break down the jacket over time.

Online vs. In-Store Prices

The same 20-meter cable can have very different prices depending on where you buy it. Online retailers often offer lower prices, more length options, and multi-packs, while retail stores provide immediate availability but frequently charge more for the same category. Specialty IT suppliers and electrical distributors are a good source for professional-grade cables and patch cords.

Wherever you buy, compare the full specifications, not just the price. Two cables with the same category label can differ in conductor material, construction, and verification.

Signs a Cheap 20 Meter Cable Is Low Quality

• The listing does not clearly state pure copper conductors, or it mentions CCA or copper-clad aluminum.
• The jacket lacks printed information such as category, manufacturer, and listing marks.
• Connectors feel loose, flimsy, or lack strain relief.
• The cable is labeled Cat7 or Cat8 but priced far below reputable Cat6 cables.
• There is no UL or Intertek (ETL) verification or clear brand information.
• Reviews mention slow speeds, intermittent connections, or broken locking tabs.

Copper-clad aluminum cable does not meet TIA category standards, has higher resistance, and can overheat when used with PoE, so it is best avoided.

Matching the Cable to Your Device

• Router to modem, computer, or TV: Cat6 provides full performance for any home internet plan.
• Gaming consoles: Cat6 delivers low latency and stable connections; higher categories offer no gaming advantage.
• PoE security cameras: Cat6 works well; use outdoor-rated cable for exterior runs.
• Wi-Fi access points: Cat6 supports most models, while Cat6A is recommended for high-power and multi-gigabit access points.
• Office workstations and phones: Cat6 is the standard choice, with patch cords matched to the building’s cabling system where possible.
• High-interference areas: Consider shielded cable with properly grounded equipment.

Choosing a 20 Meter Cable for Torrance Homes and Businesses

A 20-meter cable is a common length for Torrance homes, apartments, and small offices, where it can easily connect devices between rooms or across a floor. Because Cat6 offers the best balance of performance and price at this length, many buyers narrow their search further and ask, How much does a 20 meter Cat6 cable cost? For businesses along Hawthorne Boulevard, retail spaces near Del Amo Fashion Center, or larger facilities near Torrance Municipal Airport, permanent connections are best handled with solid copper cable installed inside walls and ceilings, terminated on wall jacks, and certified by a professional installer.

Conclusion

A 20-meter Ethernet cable typically costs about $8 to $50, depending on category, shielding, and jacket rating. Cat6 offers the best value for most users at about $10 to $30, supporting Gigabit, multi-gigabit, 10 Gigabit, and PoE connections at this length. Cat6A is worth considering for high-power PoE and future upgrades, while Cat7 and consumer Cat8 cables rarely provide real benefits. Choosing a pure copper cable from a reputable brand, with clear specifications and independent verification, will give you reliable performance. If your connection is a little shorter, you may want to compare the next size down, which leads to another common question: What is the price of a 15 meter Cat6 Ethernet cable?