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Latest Version
Multiplicity 4.0.5.0 LATEST
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Operating System
Windows 10 (64-bit) / Windows 11
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Filename
Multiplicity4-setup_sd.exe
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MD5 Checksum
747023a09d3bdca4789a26fe1353ad3a

Its KVM switch virtualization frees up your workspace, removing the cables and extra hardware of a traditional KVM switch.
Multiplicity is a software application developed by Stardock Corporation, renowned for its suite of productivity tools. The software is primarily aimed at users who manage multiple computers simultaneously, such as IT professionals, graphic designers, video editors, and developers.
By allowing a single keyboard and mouse to control several PCs, it streamlines workflow, reduces desk clutter, and enhances overall productivity.
Whether you are a designer, editor, call center agent or road warrior using both a PC and laptop, it makes working across multiple computers a breeze. AES 256 Encryption of all data sent between PCs!
A single keyboard and mouse can control multiple PCs, each with dedicated displays. Smoothly move the cursor across multiple displays connected to multiple computers.

Multiplicity KM is included in Object Desktop, a suite of desktop customization programs. Object Desktop includes over a dozen market-leading Windows customization products in total.
Highlights
- Greatly increase your productivity!
- Easy to use interface! Get your machines working together in minutes!
- Copy and paste images and text between computers seamlessly.
- Great tool for 3D animators, graphics designers, developers, or other professionals who want or need the resources of multiple computers at their disposal but want to work with them as if they were a single unit.
- Also great for gamers (particularly MMORPGs) who might want to keep an eye on other things on one monitor while the game runs on the other without any slow-down (or control two characters at once).
- Terrific for users with a desktop PC and a laptop who want to control both from a single keyboard and mouse.
- Seamless Control: Control up to nine computers with a single keyboard and mouse.
- Clipboard Sharing: Easily copy and paste text, images, and files between connected PCs.
- Centralized Management: Manage all connected PCs from a central interface.
- Audio Sharing: Stream audio from all connected computers to a single set of speakers.
- Secure Connection: Encrypted communication ensures secure data transfer between PCs.
- Multi-Monitor Support: Supports multi-monitor setups, enhancing user experience.
- Drag and Drop: Drag files between computers as if they were on a single system.
- Remote Control: Access and control a PC from anywhere in the world using an internet connection.
The user interface of this program is intuitive and user-friendly.
The main dashboard provides a clear overview of all connected computers, displaying their status and allowing for easy configuration.

The design is clean and modern, with well-organized menus and settings that make navigation straightforward.
Users can quickly switch between computers, manage settings, and monitor activity through the centralized control panel.
Installation and Setup
- Download the Installer: Visit the Stardock websiteor FileHorse and download the app installer.
- Run the Installer: Execute the downloaded file and follow the on-screen instructions.
- Install on All PCs: Ensure Multiplicity is installed on all computers you wish to control.
- Network Configuration: Connect all computers to the same network.
- Pairing Computers: Use the primary computer to detect and pair with other computers. This involves entering a security code generated by the software to establish a secure connection.
- Configuration: Configure settings such as keyboard shortcuts, clipboard sharing, and audio preferences.
- Switching Control: Move the mouse cursor to the edge of the screen to switch control to another connected computer.
- Clipboard Sharing: Copy text, images, or files on one computer and paste them on another.
- Drag and Drop: Drag files from one desktop to another seamlessly.
- Audio Sharing: Enable audio sharing in the settings to hear all computer audio from one set of speakers.
- Remote Control: Access a remote computer by selecting it from the interface and entering the necessary credentials.
Can I use Multiplicity with different operating systems?
Yes, it supports Windows operating systems and can be used across different versions.
How many computers can I control with Multiplicity?
It allows control of up to nine computers from a single keyboard and mouse.
Is my data secure when using Multiplicity for PC?
Yes, it uses encrypted communication to ensure data security during transfer between PCs.
Can I share audio between computers?
Yes, it supports audio sharing, allowing you to hear all computer audio from one set of speakers.
Do I need a high-speed internet connection for remote control?
A stable internet connection is required for remote control, but it does not necessarily have to be high-speed.
Alternatives
Synergy: An open-source software that allows sharing a keyboard and mouse across multiple computers.
ShareMouse: A software solution for sharing a mouse and keyboard between multiple computers.
Pricing
Multiplicity KM: $22.99 - Basic features with control for up to two computers.
Multiplicity KVM: $45.99 - Advanced features, including audio sharing and control for up to nine computers.
Multiplicity KVM Pro: $114.99 - Full feature set with remote access capabilities (9 PC KVM).
System Requirements
- Operating System: Windows 11, 10, 8 or 7
- Processor: 1 GHz or faster
- RAM: 1 GB or more
- Disk Space: 100 MB of available space
- Network: All computers must be on the same local network for seamless control
- Seamless control of multiple computers
- Secure and encrypted communication
- User-friendly interface
- Audio and clipboard sharing
- Supports up to nine computers
- Limited to Windows operating systems
- Requires all computers to be on the same network for optimal performance
- Higher price point for the full feature set
Multiplicity by Stardock is an exceptional tool for anyone managing multiple computers. Its seamless control, robust feature set, and user-friendly interface make it a standout choice in the market. While it comes at a higher price point, the investment is justified by the productivity gains and convenience it offers. Whether you're an IT professional, a developer, or a creative working across multiple systems, it can significantly streamline your workflow and enhance your productivity.
In conclusion, Multiplicity is a reliable, efficient, and secure solution for multi-computer control, offering unparalleled convenience and functionality. Its comprehensive feature set, combined with ease of use and robust performance, makes it a valuable addition to any professional's toolkit.
Note: 30 days trial version (requires e-mail activation).
What's new in this version:
Changed:
- Fixed and issue with KVM where it was not checking if remote PCs were powered on.
- Resolved issue with alt key being stuck down on primary when returning from a secondary with a key held down
- Improved performance with fake mouse pointer on a secondary when using a high polling rate mouse on the primary and a lower end secondary machine
- Tweaked fake mouse pointer to address issue with it showing under the on screen keyboard process
- Resolved issue with drag & drop still happening if you drag from one computer to another and then move onto another computer rather than finishing the drag operation
- Resolved issue with hotkeys switching computers when having a secondary display in negative coordinates
- Resolved issue with hotkey changes not always applying after changing settings
- Resolved issue with some translations missing in KVM window
- Resolved issue with some translations in Seamless Display mode
- Resolved issue with some hotkeys preventing seamless switching via the mouse to work after they have been pressed
- Added in support for custom hotkey for keyboard broadcasting mode as an alternative to three ctrl presses
- Resolved issue with not showing computers with the first monitor having a right coordinate of 0 in the advanced resolution aware grid mode for seamless
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