Bluetooth USB adapter 3MK (model 5903108605434) — wireless Bluetooth dongle for PC and laptop

The 3MK USB Bluetooth adapter is a compact wireless dongle designed to add Bluetooth connectivity to desktop PCs and laptops that lack a built-in Bluetooth radio or need an additional interface. The plug-and-play USB-A design provides standard Bluetooth data and audio transmission, enabling pairing with a wide range of devices such as headphones, speakers, keyboards, mice and smartphones. Its small form factor keeps the adapter unobtrusive when connected, making it suitable for stationary and portable systems.

Advantages

This Bluetooth USB adapter offers a simple upgrade path to add wireless communication without internal hardware changes. The plug-and-play approach minimizes setup time on most operating systems, while the compact housing reduces the risk of accidental damage when a laptop or PC is moved. It supports both audio and peripheral devices, allowing a single adapter to handle headphones, speakers, input devices and file transfer tasks. The low-power operation helps preserve laptop battery life compared with some larger wireless solutions.

Suitable for

• Adding Bluetooth to older desktops and laptops without built-in Bluetooth
• Connecting wireless headphones and speakers for audio playback
• Pairing wireless keyboards and mice to reduce cable clutter
• Using smartphones and tablets for file transfer or tethering
• Providing a secondary Bluetooth interface for multi-device setups

Key specifications

• Interface: USB-A plug
• Wireless standard: Bluetooth (classic data and audio profiles supported)
• Form factor: compact, low-profile dongle
• Power: USB-powered, low power consumption suitable for laptops
• Compatibility: PC and laptop systems lacking built-in Bluetooth or requiring an extra adapter

How to use

Insert the USB Bluetooth adapter into an available USB-A port on your computer. On most systems the adapter will be recognized automatically and the required drivers will be installed or made available through the operating system. If manual driver installation is required, follow the manufacturer’s driver instructions provided with the adapter or via the device downloads. After the adapter is recognized, enable Bluetooth in the operating system settings and use the standard pairing procedure to connect headphones, speakers, input devices or smartphones.

Usage recommendations

Place the adapter in a free USB port with minimal metal obstruction to optimize signal range. For stationary PCs, use an unoccupied rear USB port or a short extension cable to reduce interference from other peripherals. Keep firmware and drivers up to date via the operating system or manufacturer resources to maintain compatibility and security.