0cf3:e300 — QCA61x4 Bluetooth 4.0

This is the USB identifier for a QCA61x4 Bluetooth 4.0 manufactured by Qualcomm Atheros Communications. The vendor ID 0cf3 is registered to Qualcomm Atheros Communications with the USB Implementers Forum, and e300 is the product ID that Qualcomm Atheros Communications assigned to this particular model. When you run lsusb on Linux, this device appears as 0cf3:e300 Qualcomm Atheros Communications QCA61x4 Bluetooth 4.0.

Linux

$ lsusb
Bus 001 Device 004: ID 0cf3:e300 Qualcomm Atheros Communications QCA61x4 Bluetooth 4.0

You can filter directly with lsusb -d 0cf3:e300, or get the full descriptor dump with lsusb -v -d 0cf3:e300. Kernel messages from dmesg show the same pair as idVendor=0cf3, idProduct=e300.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_0CF3&PID_E300
USB\VID_0CF3&PID_E300&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0CF3&PID_E300"

macOS

$ system_profiler SPUSBDataType
    QCA61x4 Bluetooth 4.0:
      Product ID: 0xe300
      Vendor ID: 0x0cf3  (Qualcomm Atheros Communications)

Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page. Qualcomm Atheros Communications official support →

The exact lines this page is generated from, in the upstream source file:

0cf3  Qualcomm Atheros Communications
	e300  QCA61x4 Bluetooth 4.0

• 0cf3:9378 QCA9377-7
• 0cf3:b002 Ubiquiti WiFiStation 802.11n [Atheros AR9271]
• 0cf3:b003 Ubiquiti WiFiStationEXT 802.11n [Atheros AR9271]
• 0cf3:e006 Dell Wireless 1802 Bluetooth 4.0 LE

See all 28 devices from Qualcomm Atheros Communications →