Asus USB-BT540 Bluetooth adapter

The ASUS USB-BT540 is an ultra-compact USB adapter that instantly adds the latest Bluetooth 5.4 technology to your PC or laptop. This tiny dongle provides fast and energy-efficient wireless connectivity, allowing you to connect up to 7 Bluetooth devices simultaneously. It's ideal for wireless headphones, speakers, keyboards, mice, gamepads, and other peripherals.

With support for Bluetooth 5.4 and Bluetooth Low Energy (BLE), the USB-BT540 offers twice the data transfer speed and four times the range compared to previous Bluetooth versions (e.g., 4.x), while significantly reducing the power consumption of connected devices. The adapter also supports the new LE Audio (Auracast) technology, which enables audio sharing across multiple devices (where supported by the OS and devices). Its discreet, "always-on" design barely protrudes from the USB port, ensuring maximum portability. Compatibility with Windows 10/11 and Linux makes it a versatile solution for wireless connectivity.