The Simplecom NB540 USB Bluetooth 5.4 Adapter Wireless Dongle enhances your PC or laptop with advanced Bluetooth 5.4 connectivity, enabling seamless wireless communication with a variety of devices such as keyboards, mice, headsets, speakers, printers, controllers, and smartphones. This adapter offers faster device discovery and reduced energy consumption, thanks to its support for Bluetooth Low Energy (BLE) and LMP Version 13 (Link Manager Protocol). With a Class II power standard, it provides a reliable signal range of up to 20 meters. The NB540 supports A2DP stereo playback and an Enhanced Data Rate (EDR) of up to 3Mbps, ensuring high-quality audio streaming and efficient data transfer. Designed for ease of use, it offers plug-and-play functionality for Windows 10 and later operating systems, allowing for quick and effortless setup.
Features

Simplecom NB540 USB Bluetooth 5.4 Adaptor Wireless Dongle
NB540 is a Bluetooth USB Adaptor equipped with advanced Bluetooth 5.4 technology, specifically designed for Windows systems. It offers improved performance, faster data transfer rates, and lower energy consumption. With this Bluetooth dongle, you can easily connect multiple devices to your PC and enjoy wireless connection with a wide range of Bluetooth-enabled devices. It also supports Bluetooth Low Energy (BLE) to help minimise power usage, while maintaining full backward compatibility with earlier Bluetooth versions.
This Adaptor allows you to connect your PC to various Bluetooth devices such as keyboards, mice, headsets, speakers, printers, controllers, phones, and more. It's a perfect solution for wirelessly transferring files, audio, or voice on your desktop or laptop PC.
- Designed to provide Bluetooth connectivity for PCs or laptops
- Supports Bluetooth 5.4, backward compatible with previous versions
- Offers faster device discovery and reduced energy consumption
- Supports LMP Version 13 (Link Manager Protocol)
- Supports Bluetooth Low Energy (BLE) to help minimise power usage
- Class II power standard with a signal range of up to 20 meters
- Supports A2DP stereo playback
- Supports EDR data rate up to 3Mbps
- Supports plug and play for Windows 10 and later operating systems

For Windows PC to Support Bluetooth Connectivity
Support Bluetooth 5.4, backward compatible with Bluetooth 2.0/3.0/4.0
Designed for Bluetooth Enabled Devices
- Bluetooth Headset
- Bluetooth Keyboard
- Bluetooth Speaker
- Bluetooth Mouse
- Smartphone

Dimensions
Specifications
Model Number |
NB540 |
Bluetooth Protocol |
Bluetooth V5.4 |
Interface |
USB 2.0 |
Input Power |
USB 5V (USB Powered) |
Operating Frequency |
2.402-2.480 GHz |
Transmission Range |
up to 20M (Class II) |
Sensitivity |
[email protected]%BER |
Profiles |
SPP, BLE, ANCS, HFP, HCRP, A2DP, AVRCP |
Operating Temperature |
0°C - 40°C |
Operating Humidity |
10%-90% RH (Without condensation) |
Dimension |
22(L) x 14mm(W) x 6mm(H) |
Supported OS |
Windows 7, 8, 10, 11 (32/64bit) |
Backed by a 1 year Simplecom warranty.