Ethernet keystone jacks and RJ45 keystone couplers are designed to snap into the wall plates, surface mount boxes, or patch panels. When you install their home or office networks, you may be puzzled about choosing Ethernet keystone jacks or RJ45 keystone couplers for your network installation. You’ll find the answer in this post.

　　What is RJ45 Keystone Coupler?

　　RJ45 keystone coupler is a type of RJ45 coupler or inline coupler, the main function of which is to connect two patch cables and extend the Ethernet cable length. There are different types of RJ45 couplers, and you can learn more from What is An Ethernet Coupler? RJ45 keystone couplers are available in different categories and colors for various applications.

　　What is Ethernet Keystone Jack?

　　An Ethernet keystone jack is one of the most common keystone jacks. One end of the keystone jack is used to terminate an Ethernet cable, and the other end is used to connect to an RJ45 connector. They can be securely held in place using their flexible tabs.

　　Which Should I Choose: Keystone Coupler or Ethernet Keystone Jack?

　　Keystone couplers and Ethernet keystone jacks are usually inserted into Ethernet wall plates, mount boxes, and patch panels. Unshielded keystone jacks and couplers are generally divided into different categories, including Cat5e and Cat6. Cat6a and Cat8 keystone couplers and jacks are usually shielded for fast and secure data transmission.

　　Both of them can help connect two Ethernet cables, but do you know how to choose them? They have their own advantages and disadvantages and we’ll discuss them in the following content.

　　Keystone Couplers

　　Keystone couplers usually feature a smaller size than Ethernet keystone jacks and they don’t require other special tools. They are highly recommended for those who don’t want to spend much time installing network.

　　CAT6 Keystone Coupler

　　Pros:

　　Ease of Use: These user-friendly couplers are suitable for all users, even if you’re new to network installation. They are easy and quick to install and require minimal technical expertise. Just simply plug in two Ethernet cables, and you’ll get an extended connection.

　　Space Optimization: The smaller size makes keystone couplers maximize the space, allowing for dense cable management in smaller places. They are also suitable for blank patch panels used in server rooms or data centers.

　　Efficiency and Flexibility: Keystone couplers provide a fast and convenient way to connect Ethernet cables. They are designed with different colors for neat cable management. Moreover, they are convenient for those situations where a temporary connection is needed.

　　No Special Tools: No special tools or equipment are needed for installation.

　　Cons:

　　Signal Quality: You can’t use more than three keystone couplers to connect Ethernet cables, or it will cause signal loss.

　　Interference: The Ethernet connection may be affected by exterior interference if the Ethernet coupler has been used for a long time.