UGREEN CM591 Bluetooth 5.3 USB Adapter for PC – UG-90225

The UGREEN CM591 Bluetooth 5.3 USB Adapter (UG-90225) is a compact wireless adapter designed to add Bluetooth connectivity to compatible Windows desktop PCs and laptops. It provides a convenient way to connect Bluetooth headphones, speakers, keyboards, mice, printers, game controllers, smartphones, and other supported Bluetooth devices to computers without built-in Bluetooth.

Featuring Bluetooth 5.3 with BR+EDR and Bluetooth Low Energy (BLE) technology, the adapter provides stable wireless communication with improved efficiency and compatibility with a wide range of Bluetooth peripherals.

Its ultra-compact USB-A design occupies minimal space around the computer’s USB ports and can remain connected during everyday use. An integrated LED indicator provides a visual indication of operating status.

Product Features

Bluetooth 5.3 Technology

Features Bluetooth 5.3 for stable and efficient wireless connectivity between compatible Windows computers and Bluetooth-enabled peripherals.

BR+EDR & BLE Support

Supports Bluetooth BR+EDR and Bluetooth Low Energy (BLE) technologies, providing compatibility with a broad range of Bluetooth devices.

Up to 20m Wireless Range

Provides a transmission distance of up to approximately 20 metres under suitable open operating conditions.

Multi-Device Connectivity

Supports connecting multiple compatible Bluetooth peripherals, making it convenient for users who need wireless headphones, keyboards, mice, controllers, and other accessories on the same computer.

USB-A Interface

Connects directly to a standard USB-A port, making it suitable for desktop PCs and laptops equipped with compatible USB connections.

Compact Nano Design

The small form factor minimizes obstruction around adjacent USB ports and allows the adapter to remain connected without occupying unnecessary desk space.

Bluetooth Audio Support

Allows compatible computers to connect wirelessly with Bluetooth headphones, headsets, speakers, and other supported audio equipment.

Keyboard & Mouse Connectivity

Suitable for connecting compatible Bluetooth keyboards and mice, helping create a cleaner wireless workstation.

Game Controller Support

Can be used with compatible Bluetooth-enabled game controllers on supported Windows systems.

LED Status Indicator

Features a built-in LED indicator for convenient monitoring of the adapter’s operating status.

Product Specifications

• Product Type: USB Bluetooth Adapter / Dongle
• Brand: UGREEN
• Model: CM591
• Product Code: UG-90225 / 90225
• Bluetooth Version: Bluetooth 5.3
• Bluetooth Technologies: BR+EDR / BLE
• Host Interface: USB-A
• USB Standard: USB 2.0
• Frequency Range:402–2.480GHz
• Maximum Operating Range: Up to 20m
• Multi-Device Connectivity: Supported
• LED Indicator: Yes
• Power Supply: USB Bus Powered
• External Power Required: No
• Design: Ultra-Compact USB Dongle
• Compatible Operating Systems: Windows 11 / Windows 10 / Windows 8.1
• Suitable For: Desktop PCs and Laptops with Compatible USB-A Ports
• Compatible Devices: Bluetooth Headphones, Headsets, Speakers, Keyboards, Mice, Printers, Game Controllers and Other Supported Bluetooth Devices
• Applications: Wireless Audio, Computer Peripherals, Gaming, Office Work and General Bluetooth Connectivity
• Important Compatibility Note: Designed primarily for compatible Windows PCs; do not list it as supporting macOS or Linux.