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4K and HD KVM over IP Matrix Switching and Extension

Multiple Computer Access over IP and Direct Connect

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The award winning Emerald™ 4K KVM over IP is a Unified KVM converged system that delivers pixel-perfect HD or 4K video over an IP network, a proprietary direct connection or both. It allows reliable extension and switching of video (DisplayPort or DVI), transparent USB 2.0, bi-directional analogue audio and serial signals across any combination and number of physical and virtual desktops and servers. Easily access both physical and virtual servers— with virtual machine support for VMware®, Microsoft® and Citrix®, using PCoIP, RemoteFX and RDP 8.1. Virtual machine sharing allows multiple users to control or monitor the same virtual desktop and resources. With more capabilities than other KVM solutions currently on the market, Emerald™ delivers superior value, lowering your costs of ownership and saving your IT investments.

Emerald™ Unified KVM Features

  • Remote Computer and Server Access

    Access and manage an unlimited number of servers, PCs, and virtual machines from any location and share resources such as hardware and licenses across a dedicated KVM network, an existing IP network, or even the internet

  • 4K over IP KVM Matrix Switching

    High-performance, secure KVM and AV routing of 4K60 DisplayPort 1.2 and HD DVI video as well as transparent USB 2.0 signals

  • Out-of-Band Remote Server Access

    Secure high-speed access to an unlimited number of endpoints like servers, PCs, and virtual machines

  • Remote BIOS-level Access

    Benefit from BIOS-level access to troubleshoot, reconfigure, reboot and power cycle servers remotely

KVM trade-in program - save 10% on Emerald 4K and Emerald SE until April 30th 2019.

Emerald™ KVM Matrix Switch Benefits

Futureproof and Scalable KVM

Start with HD and add 4K at your own pace. Scale a small point-to-point extension up to an enterprise KVM matrix of unlimited endpoints by adding additional receivers/transmitters. Choose between a proprietary Emerald™ KVM matrix switch or an IP switch – or combine both.

Network Resilience

Designed with 24/7/365 critical applications in mind, Emerald™ is configurable with redundant network paths via SFP+ ports (fibre or copper) for fail-safe operation. Supports complete switchover to a backup control room location.

True USB Emulation

True USB emulation, supporting USB HID devices, X-Keys, USB push buttons, Wacom® tablets, USB mass storage and other high-speed USB 2.0 devices.

Remote Access to Virtual Machines

Enable multiple users to access any number of physical and virtual servers and desktops. Support for VMware®, Microsoft® and Citrix®, using RDP 8.1, RemoteFX and PCoIP.

4K Pixel-perfect Video Supporting MST

Extend and switch HD and 4K video. Adjust compression in five steps up to pixel-perfect image transmission — every pixel visualised at 60 fps with 10-bit colour depth. Supports multiple HD streams via one 4K DisplayPort 1.2 channel through MST.

Custom License Options

Emerald SE is flexible annd completely customizable through additional license options, including pixel perfect video transmission, Glide&Switch, bonding and more.

Industry Applications

Emerald™ KVM Matrix Switch Use Cases

Network Application

Application Diagram: Network Application

Application diagram: Emerald KVM matrix combining IP-based and direct connect switching.

Multiple Site Application

Application Diagram: Multiple Site Application

Application diagram: Emerald KVM matrix connecting a control room and a backup site.

Resilient KVM Networks

Application Diagram: Resilient KVM Networks

Application diagram: Emerald KVM transmitters and receivers providing redundant network paths in case of failure.

MST Support

Application Diagram: MST Support

Application diagram: Use a graphic card supporting MST to extend up to 4 HD video signals over a single 4K DisplayPort 1.2 interface.

Virtual Machine Connectivity

Application Diagram: Virtual Machine Connectivity

Application diagram: Remote, high-speed access to virtual machines, supporting Vmware®, Microsoft® and Citrix®.

Product Portfolio

Emerald™ 4K KVM Transmitters/Receivers

4K60 10 bit colour KVM over IP or direct-connect transmitters, DisplayPort 1.2, 4xUSB 2.0, 1xRJ45, 2x SFP+, 1x serial, analogue audio in/out.

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Emerald™ 2K KVM Transmitters/Receivers

HD KVM over IP or direct connect transmitters, 1x (single head) or 2x (dual-head) DisplayPort 1.1, 4xUSB 2.0, 1xRJ45, 1x SFP, 1x serial, analog audio in/out.


Emerald™ SE, HD Transmitters/Receivers

HD KVM over IP or direct connect transmitters, 1x (single head) or 2x (dual-head) DVI, 4xUSB 2.0, 1xRJ45, 1x serial, analog audio in/out.


Emerald™ 4K P2P Extension Kit

4K60 KVM extension kit (receiver and transmitter), including 2x SFP+ modules, 850nm Multimode fibre up to 300m.


Emerald™ KVM Matrix Switches

Depending on the number of endpoints connected and the video resolution required, you can choose between a variety of different IP or proprietary Network Switches supporting 1/10/100 Gbit from 28/32/48 ports.

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Emerald™ SFP Modules

Emerald supports both CATx copper and fibre connections from SFP/SFP+ slots. Choose your SFP module(s) based on the required transmission bandwidth.

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Associated Products

While Emerald™ is a one-of-a-kind solution that opens up the revolutionary new world of Unified KVM, the platform builds upon time-tested KVM technology evolved by Black Box since the early 1990s. Emerald™ works flawlessly with many popular Black Box product families, including: the DKM proprietary direct-connect KVM system; the Freedom II KM Switch for easy switching just by moving a mouse between screens; the ControlBridge™ system for one-touch, multisystem control; and the award-winning Boxilla™ KVM Manager.

KVM Manager

Boxilla™ Centralised KVM & AV Manager allows local or global centralised management of KVM networks. Monitor network traffic, add or remove resourcs and users, and prevent unauthorised network access through intrusion detection.

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Freedom II™
KM Switch

This 4 or 8 port USB KM Switch allows switching between up to 8 connected PCs by just moving your mouse from one screen to another. Compatible with all Emerald products.

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Room Control Automation

Versatile touch-based multisystem room control processor. ControlBridge allows control room operators to switch between sources or whole room setups.

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Emerald™ Brochure

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Emerald™ Flyer

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Webinar: Future Trends of KVM Switching & Extension

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Bridging the Gap Between Physical and Virtual Servers

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