You can find the BLE driver on the software downloads section of our website or linked below.
https://www.rfideas.com/sites/default/files/2020-02/BLE-Driver.exe_.zip
If you are going to be developing, you may also want the Bluegigga Bluetooth SDK from Silicon Labs found here.
https://www.silabs.com/products/development-tools/software/bluegiga-bluetooth-smart-software-stack