KVM Extenders & Switches

Matrox Extio 3 Series

Extio N3408

Extio 3 N3408 Board Appliance
Secure IP KVM control for critical workflows

Matrox® Extio N3408 IP KVM extenders deliver 4K/UHD performance or quad-monitor capabilities over standard Gigabit Ethernet at ultra-low bitrates. Easy to set up, Extio N3408 can be configured as a point-to-point or networked KVM extender to deliver multiple video, keyboard, mouse, USB 2.0, and audio signals using a single fiber optic or copper cable. Aggregated and seamless control of multiple systems from a remote display station with a single keyboard and mouse set leads to efficient operations and increased productivity. TAA compliant SKU available.

4K KVM extension over standard 1 GbE

Quad Monitor Icon

Multi-monitor KVM over a single fiber optic or copper cable

4K Pad Icon


Point to Point Icon

Point-to-point KVM

KVM Matrix Over IP

KVM matrix over IP with fast switching 

Security Icon

Secure KVM with encryption

Aggregator Mode Icon

Aggregator mode

Tile View Icon

Tile View

Long Distance Over WAN or Internet

Longer distance over WAN or Internet

Connect further and faster

Extio3 Connect Workflow

The Extio 3 4K KVM extender supports 4K60 4:4:4 applications at low bitrates over standard 1 GbE networks. Featuring four DisplayPort™ connectors, Extio 3 also extends multi-display desktops extender and delivers multiple video, keyboard, mouse, USB 2.0,  audio, and RS232 signals with a single pair of KVM transmitter and receiver units—over LAN, WAN, or internet—for the ultimate KVM matrix over IP.  

Deploy flexible, scalable, secure configurations - easily

Whether deployed as point-to-point extenders or as KVM over IP, Extio 3 KVM extenders offer the flexibility to adapt to your installations as demands change. With the power to create flexible, scalable, and secure KVM matrix-routing using standard network switches, Extio 3 enables you to easily expand your installations with confidence and without costly upgrades to help future proof your investment.  

One to One Workflow


Many to One Workflow


One to Many Workflow


Many to Many Workflow


Fast multi-monitor, multi-system control

View and operate four source computer systems from any Extio receiver unit and control them with a single keyboard and mouse set. Seamlessly shift control from one target source system to another simply by moving your mouse across a multi-screen desktop. 

With Aggregator Mode, you can shift from the current desktop to the next by moving the mouse freely across multiple desktops. For an even more efficient way to control multiple KVM systems, the Tile View feature enables you to display up to four separate systems on one 4K or FHD monitor. 


Secure KVM control

To ensure sensitive information remains protected, Extio 3 features built-in protections to prevent security gaps, and doesn’t require software to be installed on the source system. 

  • Advanced Encryption Standard (AES) to encrypt signals between transmitters and receivers 
  • Password and user management with Microsoft® Active Directory® 
  • 802.1x port authentication and IGMPv3 to prevent unauthorized devices from accessing your network 
  • Syslog support to monitor and record KVM device and user activity


Security Lock

High availability & redundancy

Extio3 Zoomed in

Build redundancy and fault tolerance into your installations. Supporting a distributed model of operation, Extio 3 removes single point of failure by storing all device settings and connectivity rules in each transmitter and receiver unit. Extio 3 appliances also feature two network interface ports that are configurable for link redundancy. 

The ultimate IP KVM for Broadcast and Media

Working with standard COTS network switches, Extio 3 IP KVM extenders offer broadcast environments a best-in-class KVM extension and switching solution over IP that is scalable and cost-effective. With Extio 3’s Aggregator Mode, you can access up to four systems simultaneously, and switch between sources with just a single keyboard and mouse. The 4K Tile View feature gives you advanced multi-system control by extending and displaying up to four FHD systems on a single 4K display. 


Aggregator 4K ISO Diagram 4 Systems Music

Link your KVM devices. Enhance your remote workspace.

KMLync Extio 3 workflow


  • Create a larger multi-monitor workspace by linking multiple Extio 3 receivers with Matrox KMLync, our 4-port keyboard and mouse switch.
  • Enjoy seamless mouse movement across larger workspaces. KMLync enables you to control all the Extio 3 receiver devices on a network with a single keyboard and mouse set.

Always powered. Always on.

Safeguard against a potential loss of power. Matrox makes available rack-mounted, multi-output redundant power supply units (RPSU) to ensure uninterrupted operation of your Matrox device in case of a power module failure and a redundant power input in case a circuit breaker trips. 

Learn more about redundant power supply units

NRG & Extio 3


Centrally manage all Extio 3 networked IP KVM devices

Secure, centralized management of all networked Extio 3 IP KVM extenders is overseen through Matrox Extio Central Manager, an easy-to-use software to configure, manage, and monitor Extio 3 transmitter and receiver units. Extio Central Manager delivers smart control over the network, with an intuitive interface that facilitates discovery of networked Extio units, manages connections, and offers options to set up device parameters. 


Matrox Extio Central Manager icon


APIs and white-label options for ultimate flexibility

Matrox Extio developer tools box

Integrators and developers gain command-level access to build personalized Extio Central Manager applications and/or integrate Extio 3 functionality into existing or even third-party applications. White-label options let OEMs and integrators customize the appearance of the Extio Central Manager user interface for easy re-branding of Matrox software with enterprise naming, logos, colors, and identity. 

Learn more

Technical specifications

Part Number

Transmitter Appliance—XTO3-N3408TX

Transmitter Card—XTO3-N3408CTX

Receiver Appliance—XTO3-N3408RX


view more 


How-to videos

How to set up 4K tile view in aggregator mode with Extio 3 IP KVM extenders

How to use aggregator mode: A Fast-Track to Understanding Extio 3’s Multi-System Control

Getting Started with Extio Central Manager—Part 1

Getting Started with Extio Central Manager–Part 2

How to set up for point-to-point operation

How to set up for networked operation

How to configure IPSec VPN on Extio 3 IP KVM extenders