KVM Switch that enables the user to control up to four computers with one keyboard and mouse whilst maintaining simultaneous access to all video and audio sources

Adder CCS_PRO4


The ADDER CCS-PRO4 enables users to interact with up to four computers using a single mouse. The operator can move the cursor across screen borders to instantly select the computer they need to control, providing the experience of a single desktop.

  • Seamless switching between multiple computers
  • Manage multiple computers, and multiple monitors with a single keyboard and mouse
  • No software installation required for single screen computers
  • Improved desk ergonomics
  • Copy and paste text between Windows computers
Product codes
ADDER Web CCS-PRO4 Diagram

Product Features

  • Improved desk ergonomics. Only one keyboard and mouse is required to operate up to four computers, improving desk ergonomics and reducing the time taken for operators to multiplex to different systems.
  • Seamless switching by mouse control with Free-Flow technology. Free-Flow allows users to automatically switch between target computers by moving the mouse pointer from screen to screen.
  • Instant switching with USB True Emulation. Adder’s USB True Emulation technology overcomes limitations of other KVM switches by emulating the true character of connected devices, to all computers, simultaneously. This means the operator can use extra function keys, wheels, buttons and controls, without sacrificing switching times.
  • Independent simultaneous device selection. Switching options allow operators to use the keyboard and mouse on one computer while having USB peripherals and speakers independently connected to different computer(s). It is still possible to switch all the connected devices to any one of the connected computers at any time.
  • Keep-alive function. Users have the option to choose which computers ‘stay alive’, preventing target computers from sleeping while not in use, useful in situations where rapid switching is required.
  • Multi monitor Free-Flow. The system is able to support up to 16 monitors per computer. To enable Free-Flow on multimonitor computers, a driver must be installed on the target computer. (Windows only).
  • Audio mixing. Users can choose which audio source to hear, regardless of which computer is being operated.
  • External control options. The unit can be controlled and switched via hotkeys, mouse clicks, Ethernet or RS232. With the open API, the unit can be easily set up and integrated into third party systems.
  • Screen illumination module. The CCS-XB expansion module is an optional accessory that identifies which screen is being controlled using an LED indicator. The color and intensity can be controlled for each screen. A maximum of ten LED indicators can be supported.
  • Redundant power. For mission critical applications, dual power inlets are available.
  • Copy and Paste. Copy and paste up to 200KB of formatted text between directly connected Windows computers. Encrypted data setting available. A driver must be installed on each computer.




Hardware compatibility
• All computers equipped with USB2.0 connections.

Software compatibility
• All known operating systems for single screens except Linux operating systems, which often have no native support for absolute mouse positioning.

Computer connections
• Audio 3.5mm in x 4, USB2.0 Type-B x 4.

User console connections
• Audio 3.5mm out x 1, USB Type-A x 2 (Console- USB2.0 Low and Full Speed), USB Type-A x2 (Enumerated USB2.0.)

USB specification for console connection
• Supports up to six low or full speed devices. Keyboards which support multiple devices behind a hub can now be supported. The USB class of the supported devices on the console port is limited to HID devices only. It is not possible to use other USB devices e.g. card readers, memory sticks or touch screens on the console port. These devices need to be connected to the enumerated USB ports on the switch.

Physical design
• Robust metal construction.
• 296mm/11.7”(w), 30mm/1.2”(h), 126mm/5.0”(d), 1.1kg/2.4lbs

• 3 pin lockable jack x 2 (one power adapter included),100-240VAC
50/60Hz, 0.7A, input to power adapter. 12VDC, 18W output
from power adapter.

Connection to CCS4:
• 10p10c connector via cable VSC46.

Operating Temperature
• 0 to 40°C/32 to 104°F.


Associated products


The ADDER CCS-PRO8 is a Command and Control Switch which enables users to interact with up to eight computers using a single keyboard and mouse.

ADDER Free-Flow 

The ADDER Free-Flow represents true innovation in KVM switching. For the first time, Free-Flow allows users to automatically switch between target computers simply by moving the mouse pointer from screen to screen. What makes this such a revolution is that you no longer need software to be installed on your mission critical computers in order to work.

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Where to buy

Adder products are purchasable through our key technology partners. You can find a partners on our where to buy page.

Where to buy
Ordering information

CCS-PRO4-XX: CCS-PRO4 Command and Control Switch 

XX = Mains Lead Country Code:

UK = United Kingdom

US = United States

EURO = Europe

AUS = Australia

JP = Japan

CN = China


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