What is a Media Converter?

Black Box Explains

A media converter is a networking device that transparently converts Ethernet or other communication protocols from one cable type to another type, usually copper CATx/UTP to fiber. Media converters are often used in pairs to insert a fiber segment into copper networks to increase cabling distances and enhance immunity to electromagnetic interference. They can also extend LANs, and convert link speeds and fiber modes.

Benefits of Media Converters

Extend LAN Distance with Fiber

Copper-based Ethernet connections are limited to a data transmission distance of 100 meters when using UTP cable. By using Ethernet to fiber conversion, you can extend link distance up to 80 kilometers or more.

Maintain Investments in Existing Equipment

Media converters enable you to migrate a local network to fiber while protecting your investment in existing copper-based hardware. This means no costly, time-consuming overhaul to your infrastructure.

Protect Data from Interference

Electromagnetic interference, or EMI, can cause corruption of data over copper-based Ethernet links. Data transmitted over fiber optic cable is completely immune to this type of noise, ensuring optimal data transmission and network performance.

Speed Conversion

Media converters allow you to convert link speeds from 10 Mbps to 100 Mbps or from 100 Mbps to 1000 Mbps.

Power over Ethernet

Power over Ethernet, or PoE, simplifies installation of Wi-Fi access point, IP cameras and more by eliminating the need for a local AC power circuit.

Types of Media Converters

Copper-to-Fiber Media Converters

Copper-to-fiber media converters enable connections of copper-based Ethernet equipment over a fiber optic link. This extends links over greater distances with fiber optic cable, protects data from noise and interference and future-proofs a network with additional bandwidth capacity.

Discover our wide selection of copper-to-fiber media converters.

Fiber-to-Fiber Media Converters

Fiber-to-fiber media converters connect different fiber-optic networks and support conversion from one wavelength to another. They provide connectivity between single-mode and multimode fiber, as well as between dual fiber and single fiber.

Discover our fiber-to-fiber media converters.

PoE Media Converters

Power-over-Ethernet (PoE) media converters provide reliable and cost-effective fiber distance extension to PoE-powered devices. PoE media converters can power devices like IP phones, videoconferencing equipment, IP cameras and Wi-Fi devices over copper UTP cabling.

Learn more about our vast selection of PoE media converters.
US link: the media converter selector shows 22 different SKUs with PoE. Is it possible to get a URL that features all the PoE media converters?

Stand-Alone vs. Chassis-Based Media Converters

Stand-alone media converters are compact and can be AC or DC powered. They are commonly used to convert one copper link to fiber in point-to-point installs. These converters are easy to deploy and offer a range of useful functionality for your network, such as auto-MDI/MDIX, link fault pass through and more.
Chassis-based media converters are used in high density locations such as a data center or equipment room.  They mount in racks alongside network switches, enabling the conversion of copper ports on legacy switches to fiber.

Managed vs. Unmanaged Media Converters

Managed media converters give network administrators complete control of data, bandwidth and traffic. This lets admins manage and troubleshoot a network remotely and securely to achieve and maintain optimal performance and reliability. Thus, these converters are most suitable for environments requiring a medium to large-scale deployment of media converters.
Unmanaged media converters are “plug-and-play” converters which are easy to install and troubleshoot. Unlike managed converters, these do not provide the same level of monitoring, fault detection and configuration.

Shop our selection of managed media converters now.

Commercial vs. Industrial Media Converters

Commercial media converters are designed for typical office and data center environments where ambient temperature is controlled. These converters provide a cost-effective way to extend the distance of your network and improve the life of copper-based equipment. They are perfect for commercial applications that do not deal with extreme environmental issues.

Industrial media converters convert data between twisted pair cabling and multimode or single-mode fiber optic cabling, extending the distance of a network. They are able to withstand extreme temperatures (-40° F to 167° F) and harsh conditions, feature redundant power design and are designed for high shock and vibration locations. This makes them a perfect fit for industrial networks. Industrial media converters are commonly used in applications such as building automation, oil and gas drilling and mining.

Learn more about our commercial media converters and industrial media converters.

Applications and Use Cases for Media Converters

Overcoming Copper’s Limits

Media converters extend LAN reach far beyond the 100-meter limit of copper CATx cabling by converting links to fiber. Fiber links enable link distances of up to 80 kilometers.


PoE media converters backhaul Wi-Fi data and power access points, improving network functionality and reliability in commercial applications.

Security and Surveillance

PoE+ simplifies installation of IP security cameras by eliminating the need for a power circuit near the installed device. PoE+ media converters power these devices and backhaul signals to remote data centers or operations centers.

Government and Defense

Media converters provide secure, high-performance LAN connections from the data center to desktops with fiber. Highly reliable with unsurpassed bandwidth, speed and security, fiber to the desktop is a perfect fit for government and defense applications.

Fiber Mode Conversion

Never worry about varying fiber types in your application again. Convert fiber links from multimode to single-mode and vice versa with media converters.

Which Media Converter Should You Choose?

Before you select a media converter, you must consider your current and future network requirements.

Find out how to pick the best media converter for your application by downloading our white paper: How Media Converters Deliver Cost-Effective Fiber Connectivity.

Related Products

Pure Networking Media Converters

Pure Networking Media Converters

Cost-effective converters for LAN extension

Commercial Media Converter

Commercial-Grade Media Converters

Wide variety of modular chassis-based converters and compact, standalone converters

Managed Media Converter

Managed Media Converters

Give network admins the ability to manage and monitor large networks