Asus USB-BT540 Bluetooth 5.4
Asus USB-BT540 Bluetooth 5.4.

A Bluetooth adapter adds wireless connectivity to a computer that has none, or replaces an older part that will not pair with newer headsets and keyboards. Confirm the standard version, the expected range and operating-system support, some adapters still need a driver installed by hand. If an internal module is already present, disable it before use so the two do not conflict.
Product identification
Manufacturer part number: 90IG09N0-MO0B10. Use it to confirm that accessories and spare parts match.