The usb\vid_0a12&pid_0001&rev_2520 hardware ID is a Cambridge Silicon Radio Bluetooth dongle. Download the Bluetooth driver here. Likewise this is the Bluetooth Dongle (HCI mode). See below how the Hardware ID is identified and then download the driver on here.


Likewise lets breakdown the usb\vid_0a12&pid_0001&rev_2520 hardware ID on here. We will now see what the Hardware ID can tell us about what you are looking for. In addition we already know that this was made by Cambridge Silicon Radio or CSR which is Bluetooth.

Additionally the Vendor ID (VID) 0a12 identifies the hardware vendor which we know is CSR. Again we all know that CSR made most of the Bluetooth hardware on the market. The Vendor 0a12 is the Cambridge Silicon Radio, Ltd vendor code. In addition the Product ID (PID) pid_0001. Likewise this identifies the product as the Bluetooth Dongle (HCI mode) device. Note also the there is a Revision Number (REV) rev_2520. So we now know that this Hardware ID is for the CSR Bluetooth Dongle (HCI mode). This is from the CSR Bluetooth products. The full installation and troubleshooting can be found under the page Bluetooth CSR 5.0 dongle driver.


Download driver

The difference between CSR Bluetooth versions 4 and 5 lies in the improvements and new features introduced in Bluetooth 5.0, which is the successor to Bluetooth 4.x. Here are some key distinctions:

  1. Range: Bluetooth 5 offers a significantly extended range compared to Bluetooth 4.
  2. Data Transfer Speed: Bluetooth 5 provides higher data transfer speeds compared to Bluetooth 4.
  3. Advertising Extensions: Bluetooth 5 introduces advertising extensions, enabling more efficient data transmission
  4. Low Energy: Bluetooth 5 continues to improve power efficiency and low energy consumption.
  5. Enhanced Audio: Bluetooth 5 includes support for new audio codecs and enhanced audio quality
  6. Dual Audio: Bluetooth 5 allows for the simultaneous connection of multiple audio devices
  7. IoT Connectivity: Bluetooth 5 introduces features specifically designed for the Internet of Things (IoT)

Likewise noting that the specific capabilities and features may vary across different implementations and devices utilizing CSR Bluetooth versions 4 and 5, as manufacturers may customize their offerings based on their requirements and priorities.




driver download

CSR Bluetooth Driver Win 7/8 – 64-bit



driver download


See also other Hardware ID’s on here.


Likewise usb\vid_0a12&pid_0001&rev_8891 (CSR Bluetooth)

Likewise usb\vid_0403&pid_6001&rev_0600 (UART)

In addition usb\vid_067b&pid_2303&rev_0300 (PL2303 Serial Port)

In addition see usb\vid_04e8&pid_6860&rev_0400 (Samsung MTP)

See also the usb\vid_0fce&pid_adde&rev_0100 (Xperia M dual)

Additionally there is the usb\vid_10c4&pid_ea60&rev_0100 ( CP210x UART Bridge)



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