Software Downloads

To install the software directly, click on the appropriate link, select Open then follow the prompts.

To download the installation program to your PC (for installing to multiple PCs, for example), right-click on the appropriate link, then select Save Target As... or Save Link As ... After downloading, click on the icon for the downloaded program to install your update.

Quantum Plus

Standard Version

The Quantum Plus software allows a site to manage its ACS4000 access control system. It maintains a database of programming information for all controllers and keys and interfaces through the INTELLIKEY programming equipment to update and interrogate Intelligent Locks and Keys. There is no charge for downloading the latest version of the software.

Download Quantum Plus   Version 2.0 Update 9   Updated: 05 Apr 2024   File size: 24569232 bytes   What's new

To order an installation CD, click here.

USB Drivers

Drivers for the new model KPU and LPU with built in USB ports.

KPU and older model LPU   Updated: 05 Apr 2024   File size: 2457560 bytes
Newer LPU   Updated: 11 Jun 2024   File size: 243321 bytes

Older Software

Quantum Plus replaces INTELLIKEY's older Quantum and EZ123 software. It features a user interface that will be familiar to users of either product. Quantum Plus makes use of modern database technologies for faster and more flexible operation. Users of the older software are encouraged to upgrade to Quantum Plus, at no charge. Before upgrading from an older version, contact INTELLIKEY about options for upgrading your existing lock and key information for the new software.