Emerald® - 4K and HD KVM over IP Matrix Switching and Extension

Introducing Unified KVM

The award winning Emerald® 4K KVM over IP is a Unified KVM system that delivers pixel-perfect HD or 4K video over an IP network. It allows reliable extension and switching of video (DisplayPort or DVI), transparent USB 2.0 and bi-directional analog audio 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. The Emerald Remote App turns any Windows 10 device into a software KVM receiver - without the need for additional hardware.

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

  • Remote BIOS-level Access

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

  • Remote Virtual Machine Access

    Provide access to virtual machines, such as Vmware® and Microsoft® over RDP 8.1 or PCoIP, to lower IT costs


Emerald Unified KVM 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.


Designed with 24/7/365 critical applications in mind, Emerald 4K is configurable with redundant network paths via SFP+ ports (fiber or copper) for fail-safe operation. Supports complete switchover to a backup control room location.


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

Extend and switch HD and 4K video. Adjust compression in five steps up to pixel-perfect image transmission — every pixel visualized at 60 fps with 10-bit color depth.


KVM Software

Use the Emerald Remote App to turn any Windows 10 device into a software KVM receiver. Connect to multiple transmitters and virtual machines simultaneously and from everywhere.

New: Emerald Remote App For Microsoft Windows® 10

The Emerald Remote App is a new KVM software receiver that enables remote computer access to both physical and virtual machines from any Windows 10 device. The Remote App increases mobility, device access and monitoring on your Emerald System and delivers a full HD video desktop experience up to 40 fps from multiple connections that can be launched simultaneously. This facilitates device management and access to your Emerald KVM network from anywhere you want.

  • Supports HD video up to 1920 x 1200 and provides access to both physical and virtual machines over an IP network or WAN connections
  • Open connections to multiple devices simultaneously
  • Licence-based access authenticated by the Boxilla® KVM Network Manager in real time, ensuring the Emerald administrator has full control (view licence options)

(1) Boxilla KVM Manager is required for demo purposes

(2) App only works in conjunction with valid licence

Industry Applications

Emerald KVM Matrix Switch Use Cases

KVM in Outside Broadcasting: Maximum Flexibility in a Small Footprint

Aug 5, 2020, 11:07 AM
As an IP-based solution, the Emerald KVM system provides much greater flexibility for today’s remote productions, as well as the scalability essential to future expansion or upgrades.
Company : Public Broadcaster
Company link :


When building an OB van, broadcasters and production companies always face the challenge of addressing three key factors: weight, space, and functionality. A leading public broadcaster in Germany was looking to modernize an aging OB van recently and turned to Black Box for an innovative KVM solution that would ease integration with existing infrastructure and ensure the utmost in performance and flexibility.

Having seen the Black Box Emerald® KVM platform in use at another facility, the broadcaster deliberately sought out Black Box early in the design process. The two companies collaborated to identify a forward-looking system design for the mobile unit that would support agile HD production, with an easy path to 4K in the future, as well as the option to connect to virtual machines.


Replacing an old analog KVM matrix, the Black Box equipment installed in the newly updated OB van included Emerald SE Receivers, Emerald Zero U Transmitters, and a central power hub, with the Boxilla® centralized KVM system manager providing all means to easily control and administrate the setup. A license for the Emerald Remote App provided operators with easy access to remote physical and virtual servers without the need for an additional hardware receiver. All components were installed directly in the network cabinets of the OB van. Because the entire Emerald family is based on the IP protocol, these solutions were integrated into the existing network infrastructure with ease.

The Emerald KVM system allows operators to share and control local computers in the van while providing access to remote PCs, servers, and virtual machines that are at the broadcaster’s headquarters from anywhere over the internet. The Black Box KVM system also plays a critical role in reducing the number of monitors and keyboards needed, in turn freeing up space in the van and reducing weight.


In replacing the legacy KVM matrix switches, the Black Box Emerald KVM systems create much-needed space in the OB van while reducing its overall weight. With flexible, reliable extension and switching of video, audio, USB, and serial signals across local and remote servers, operators can instantly access any device they need from any workstation within the OB van.

With a dongle design that allows them to attach directly to computers in the network cabinets, the Emerald Zero U Transmitters keep space requirements as low as possible. The intuitive operation of the Emerald systems allows operators of all technical abilities to get the most out of newly installed systems.

The Emerald Remote App from Black Box supports simple administration by IT specialists working anywhere over a WAN connection.The installation of the app on a laptop along with a VPN gives administrators the secure access they require without the need for additional hardware.

As an IP-based solution, the Emerald KVM system provides much greater flexibility for today’s remote productions, as well as the scalability essential to future expansion or upgrades. The system is fully upgradeable from HD to 4K, so full matrix functionality will be preserved with minimal changes if the broadcaster chooses to upgrade individual workstations and computers to 4K in the future.

Tags :
  • Broadcast & Media
  • Emerald KVM

Aplicaciones del Conmutador Matricial KVM Emerald™

Network Application


Application diagram: Emerald IP-based KVM matrix switching application.

Multiple Site Application


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

Resilient KVM Networks


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

Virtual Machine Connectivity


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

Emerald Remote App


Application diagram: Emerald Remote App installed on a laptop connected to Emerald Transmitters and a virtual machine via Boxilla.

Emerald Product Portfolio

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.


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.


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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