ASUS USB-BT540 Bluetooth 5.4 USB Nano Adapter

Bring modern Bluetooth performance to any desktop or laptop with the ASUS USB-BT540 Bluetooth 5.4 USB Nano Adapter, your ultimate solution for wireless connectivity. Supporting the latest Bluetooth 5.4 standard with Bluetooth Low Energy (BLE), this compact adapter lets you connect up to seven Bluetooth devices simultaneously - headphones, keyboards, mice, controllers, and speakers - all from a single, ultra-small dongle that barely protrudes from your USB port. Compared to older Bluetooth 4.X adapters, the USB-BT540 delivers up to 2x faster data transfer speeds and up to 4x the effective range, giving you a noticeably more stable, responsive connection. The advanced LC3 codec delivers a genuinely more energy-efficient and higher-quality audio experience, while reducing connected device power consumption by around 50% compared to older codecs. Auracast broadcast audio lets you share sound with multiple compatible devices at once, with no pairing required, making it a great fit for shared listening or presentation scenarios. Simple plug-and-play installation on Windows 10, Windows 11, and Linux means you're up and running in moments, making the USB-BT540 a genuinely practical way to add fast, modern Bluetooth capability to any PC without built-in wireless support.

FEATURES:
Latest Bluetooth 5.4 standard with Bluetooth Low Energy (BLE) support
Connect up to 7 Bluetooth devices simultaneously
Up to 2x faster data transfer and 4x the range versus Bluetooth 4.X adapters
LC3 codec for higher-quality, more energy-efficient audio (~50% less power draw)
Auracast broadcast audio - share sound with multiple devices, no pairing needed
Ultra-compact nano design, barely visible when plugged in
Simple plug-and-play setup for Windows 10, Windows 11, and Linux

SPECIFICATIONS:
Product: ASUS USB-BT540 Bluetooth 5.4 USB Adapter (Part Number 90IG09N0-MO0B00)
Bluetooth Standard: Bluetooth 5.4 (Classic BDR/EDR and Bluetooth Low Energy)
Interface: USB 2.0 Type-A
Data Rate: Up to 3 Mbps (Classic BT-BR/EDR); 2 Mbps (BLE)
Operating Range: Up to 10 metres (Classic BT); up to 40 metres in open space (BLE)
Frequency Band: 2402-2480 MHz
Spectrum: FHSS (Frequency Hopping Spread Spectrum)
Modulation: GFSK (1 Mbps), /4-DQPSK (2 Mbps), 8-DPSK (3 Mbps)
Supported Operating Systems: Windows 10, Windows 11, Linux
Weight: 1.9g
Dimensions: 14.9 x 17.4 x 7.1mm
Colour: Black

What's in the box
1 x ASUS USB-BT540 Bluetooth 5.4 USB Adapter
1 x Quick Start Guide
1 x Warranty Card