: Select your specific version (e.g., Windows 10/11, macOS, or Linux).

: Agree to the licensing terms and click the download button. Installation Guide

To download and install the driver for the (the black model), you should always prioritize the official manufacturer website to ensure system stability and security. The latest Windows driver version is 3.6.1.0 , which supports modern operating systems including Windows 11 and Windows 10 . How to Download the Driver

: Open the downloaded .exe file. Click "Next," accept the license agreement, and click "Install".

: Visit the Citizen Systems Drivers & Tools page . Filter Selection : Category : POS / PDV. Model : CT-S310II.