Ugreen USB Bluetooth 5.0 Adapter-UG- 80889
The UG-80889 brings Bluetooth 5.0 technology to desktop computers and laptops lacking built-in wireless capability. This compact USB adapter utilizes the Realtek RTL8761BU chipset, delivering enhanced data transfer speeds up to 3Mbps. Moreover, the adapter incorporates Enhanced Data Rate (EDR) and Low Energy (LE) protocols for improved performance and reduced power consumption.
The CM390 model designation represents Ugreen’s commitment to reliable wireless connectivity. Users can establish stable connections with various Bluetooth-enabled peripherals including audio devices, input accessories, and gaming controllers. Additionally, the adapter maintains backward compatibility with Bluetooth 4.0, 3.0, 2.1, 2.0, and 1.1 standards.
Extended Range and Multi-Device Support
This Bluetooth dongle provides wireless connectivity up to 20 meters (66 feet) in open spaces. The extended range eliminates the need for proximity between connected devices and the host computer. Furthermore, the UG-80889 supports simultaneous connections to five different Bluetooth devices without signal interference.
The adapter operates on the 2.4GHz frequency band (2.402GHz – 2.480GHz), standard for Bluetooth communication. It supports essential Bluetooth profiles including A2DP for audio streaming, AVRCP for media control, HFP for hands-free communication, and HSP for headset functionality. Consequently, users can connect headphones, speakers, keyboards, mice, and printers through a single adapter.
Plug-and-Play Installation for Modern Systems
The UG-80889 offers driver-free operation on Windows 11, 10, and 8.1 operating systems. Users simply insert the adapter into an available USB 2.0 port to enable Bluetooth functionality. The system automatically recognizes the device and displays the Bluetooth icon in the system tray.
For Windows 7 and earlier versions, manual driver installation is required. Drivers are available through Ugreen’s official website by searching model number 80889. The installation process follows standard Windows driver setup procedures. Meanwhile, the adapter also supports macOS 10.9 through 10.15 and various Linux distributions including Ubuntu, Mint, and Debian.
Ultra-Compact Design for Portability
The adapter measures 53mm × 24mm × 13mm (approximately 2.1 × 0.9 × 0.5 inches) and weighs just 3.3 grams. This minimal footprint allows the UG-80889 to remain inserted in USB ports without obstructing adjacent connections. The device features an integrated LED indicator that displays connection status.
The included protective dust cap shields the USB connector during storage and transport. The compact form factor makes the adapter ideal for laptop users who frequently travel. Therefore, users can add Bluetooth capability to any compatible computer without carrying bulky accessories.
Reliable Performance for Gaming and Audio
The EDR technology enables low-latency data transmission critical for gaming applications. Players using wireless controllers with Xbox One S, PS4, or PS5 experience responsive input without noticeable delay. The adapter maintains stable connections during extended gaming sessions.
For audio applications, the A2DP profile ensures high-quality stereo sound transmission to Bluetooth headphones and speakers. Users can stream music, participate in video calls, and watch multimedia content with clear audio reproduction. However, actual audio quality depends on the connected Bluetooth device’s capabilities.
Best Suited For
- Desktop PC Users Without Built-in Bluetooth – The UG-80889 adds Bluetooth 5.0 connectivity through standard USB ports, supporting the 2.4GHz frequency band with up to 20-meter range for wireless peripherals
- Multi-Peripheral Workstation Setups – Simultaneous connection of five devices eliminates USB cable clutter while supporting keyboards, mice, headsets, printers, and speakers through a single adapter
- Console Gamers Using Controllers on PC – EDR technology provides low-latency transmission suitable for Xbox One S, PS4, and PS5 controllers, maintaining responsive input during gameplay
- Budget-Conscious Upgraders – Delivers Bluetooth 5.0 performance with Realtek RTL8761BU chipset at an accessible price point compared to internal Bluetooth card installations
- Laptop Users Requiring Additional Bluetooth Capacity – Complements existing built-in Bluetooth by supporting five additional connections, or replaces malfunctioning internal Bluetooth modules
- Windows 7 Legacy System Operators – Maintains compatibility with older operating systems through downloadable drivers, extending Bluetooth capability to systems predating native Bluetooth 5.0 support
General Specifications
- Model Number: UG-80889 / CM390
- Bluetooth Version: 5.0 (with EDR and LE)
- Chipset: Realtek RTL8761BU
- USB Interface: USB 2.0 Type-A
- Color: Black
- Dimensions: 53mm × 24mm × 13mm (2.1 × 0.9 × 0.5 inches)
- Weight: 3.3 grams (0.12 ounces)
Bluetooth Performance
- Data Transfer Rate: Up to 3Mbps
- Frequency Range: 2.402GHz – 2.480GHz (ISM Band)
- Wireless Range: Up to 20 meters (66 feet) in open spaces
- Simultaneous Connections: Up to 5 devices
- Backward Compatibility: Bluetooth 4.0, 3.0, 2.1, 2.0, 1.1
Supported Bluetooth Profiles
- A2DP (Advanced Audio Distribution Profile): Version 1.2
- AVRCP (Audio/Video Remote Control Profile): Version 1.4
- HFP (Hands-Free Profile): Version 1.5
- HSP (Headset Profile): Version 1.2
- FTP (File Transfer Profile): Version 1.1
Operating System Compatibility
- Windows: 11, 10, 8.1, 8, 7, Vista, XP (32/64-bit)
- macOS: 10.9 through 10.15
- Linux: Ubuntu, Mint, Debian, and other distributions
- Driver Requirement: Plug-and-play for Windows 11/10/8.1; manual driver installation for Windows 7 and earlier
Device Compatibility
- Audio Devices: Bluetooth headsets, wireless speakers, headphones, earbuds
- Input Devices: Wireless keyboards, mice, trackpads, presentation remotes
- Gaming Controllers: Xbox One S, PS4, PS5 controllers
- Communication: Mobile phones, tablets for file transfer
- Peripherals: Bluetooth printers, scanners, portable devices
- Not Compatible: PS3, PS4, PS5, Nintendo Switch consoles directly; Mac OS (limited support); car systems; smart TVs
Physical Design
- Form Factor: Ultra-compact USB dongle
- LED Indicator: Status display for connection activity
- Dust Cap: Included for USB connector protection
- Port Obstruction: Minimal – does not block adjacent USB ports
- Portability: Travel-friendly lightweight design
Technology Features
- EDR (Enhanced Data Rate): Improved transmission speed and reduced latency
- LE (Low Energy): Bluetooth Low Energy protocol support for power efficiency
- Automatic Reconnection: Reconnects to previously paired devices automatically
- Stable Connection: Maintains signal integrity at maximum range
Certifications and Compliance
- FCC ID: 2AQ15-CM390
- IC: 26850-CM390
- Standards Compliance: CAN ICES-003(B) / NMB-003(B)
- European Standards: EN IEC 62368-1:2020+A11:2020, ETSI EN 301 489-1 V2.2.3, ETSI EN 300 328 V2.2.2
- Safety: EN 50663:2017, IEC 62321
Warranty and Support
- Warranty Period: 1-2 years (varies by region and seller)
- Technical Support: Available through Ugreen official channels
- Driver Downloads: Available at ugreen.com/pages/download
- Documentation: User manual included, online resources available
Operating Conditions
- Temperature Range: Standard operating environment (0°C to 45°C typical)
- Power Source: USB bus-powered (no external power required)
- Power Consumption: Low Energy operation reduces overall power draw










