CSR4.0 USB 2.0 Bluetooth 4.0 Adapter Driver / CSR Harmoney Wireless Software Stack v.V4.0, v.2.1.60.0 download for Windows - deviceinbox.com
CSR - Cambridge Silicon Radio (Qualcomm) Manufacturer - Jotrin Electronics
Windows Driver Package - Cambridge Silicon Radio Ltd. (CSRBC) USB (06/20/2017 2.5.2.9) version 062020172.5.2.9 by Cambridge Silicon Radio Ltd. - How to uninstall it
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About cheap CSR dongles – GIMX
Download and install Cambridge Silicon Radio Limited CSR-Realtek BlueCore Device - driver id 1399832
Cambridge silicon radio bluetooth dongle driver - holoserclass
Qualcomm Cambridge - building on Cambridge Business Park in North Cambridge - Formerly Cambridge Silicon Radio, CSR, acquired by Qualcomm in 2015 Stock Photo - Alamy