: Look for the or PCI/I/O Cards category in the drop-down menu. Find : Locate the specific model number (
If you cannot find a Techcom link, you need the driver for the chip inside the Techcom shell. techcom ssdbt819 driver download link
If you know the hardware ID is USB\VID_0A12&PID_0001 , the driver is often included in or Cambridge Silicon Radio packages. For VID_0BDA (Realtek), search "Realtek Bluetooth driver .inf" on a trusted tech forum like TechPowerUp or LaptopVideo2Go . : Look for the or PCI/I/O Cards category