Most BT-100U triggers use the Prolific PL2303 chipset . If Windows does not automatically install the driver, you can download the latest PL2303GC driver directly from the Prolific Official Website.
Look under for a device labeled "Prolific USB-to-Serial Comm Port".
In your POS settings, set the cash drawer type to "Serial" or "Standard COM". Select the COM port number identified in the previous step.
(e.g., COM3), as you will need this for your software. POS Software Configuration:
Plug your cash drawer's RJ11/RJ12 cable into the BT-100U trigger. Connect the to your computer via an available USB port. Open Device Manager on your Windows PC.
It is primarily designed for Windows (10 and 11) .
BT-100U USB Cash Drawer Trigger is a vital bridge for modern retail environments, allowing you to connect a standard printer-driven cash drawer directly to a computer without needing a receipt printer.
It is generally not compatible with Square, Mac, or iOS devices. 2. How to Install the BT-100U USB Trigger