Ugreen UG-90225 5.3 Bluetooth Adapter
The Ugreen UG-90225 represents a compact wireless connectivity solution designed for desktop and laptop computers. This USB Bluetooth adapter enables wireless communication between non-Bluetooth-enabled devices and a wide range of Bluetooth peripherals.
Advanced Bluetooth 5.3 Technology
The UG-90225 incorporates Bluetooth 5.3 protocol, delivering enhanced wireless performance compared to previous generations. This technology provides improved data transmission stability and reduced latency during active connections.
Bluetooth 5.3 offers backward compatibility with earlier Bluetooth versions. Consequently, the adapter works seamlessly with devices operating on Bluetooth 5.2, 5.1, 5.0, 4.2, 4.0, and 3.0 protocols. This compatibility ensures broad device support across multiple product categories.
Extended Wireless Range
The adapter operates effectively within a 20-meter (approximately 65 feet) radius in open space environments. However, actual range performance varies based on environmental factors. Physical obstacles such as walls, furniture, and electronic interference can reduce the effective transmission distance.
For optimal performance, the UG-90225 functions best with minimal obstructions between the adapter and connected devices. Signal strength decreases progressively as distance increases or when multiple barriers exist between connection points.
USB-A Connectivity
The Ugreen UG-90225 features a standard USB-A interface for plug-and-play installation. This connection type provides universal compatibility with desktop computers, laptops, and select smart TV models equipped with USB-A ports.
The compact form factor measures just a few millimeters in height when installed. Therefore, the adapter maintains a low profile that doesn’t obstruct adjacent USB ports. This design consideration proves particularly valuable on devices with limited port spacing.
Multi-Device Connection Capability
This Bluetooth adapter supports simultaneous connections with up to seven devices. Users can maintain active links with keyboards, mice, headphones, speakers, game controllers, printers, and smartphones concurrently.
Furthermore, the multi-device architecture allows seamless switching between peripherals without manual re-pairing. The UG-90225 manages connection priority automatically, ensuring stable performance across all paired devices.
Operating System Compatibility
The adapter provides native driver support for Windows 8.1, Windows 10, and Windows 11 operating systems. Installation occurs automatically when the UG-90225 connects to compatible Windows systems, eliminating manual driver downloads in most configurations.
Additionally, the adapter supports Linux distributions, though driver installation may require manual configuration. macOS systems are not supported, as Apple devices typically include built-in Bluetooth hardware.
Energy-Efficient Operation
The Ugreen UG-90225 implements Bluetooth Low Energy (BLE) technology for power-efficient wireless communication. This energy management protocol reduces power consumption during data transmission, particularly beneficial for battery-powered peripherals.
Moreover, the adapter draws minimal power from the host USB port during operation. This efficiency allows continuous operation without significant impact on laptop battery life or system power budgets.
Peripheral Device Support
The adapter enables wireless connectivity for diverse peripheral categories. Audio devices including headphones, earbuds, and Bluetooth speakers connect directly through the UG-90225. Input devices such as keyboards, mice, trackpads, and game controllers establish reliable wireless links for responsive performance.
Similarly, the adapter supports printers, scanners, smartphones, tablets, and fitness trackers. This broad device compatibility transforms standard computers into comprehensive wireless connectivity hubs.
General Specifications
- Model Number: Ugreen UG-90225
- Product Type: USB Bluetooth Adapter
- Form Factor: Nano USB Dongle
Wireless Technology
- Bluetooth Version: 5.3
- Backward Compatibility: Bluetooth 5.2, 5.1, 5.0, 4.2, 4.0, 3.0
- Wireless Range: Up to 20 meters (65 feet) in open space
- Frequency Band: 2.4 GHz ISM Band
- Modulation: GFSK, π/4-DQPSK, 8-DPSK
Connection Specifications
- Interface Type: USB-A
- Maximum Simultaneous Connections: 7 devices
- Supported Device Classes: Audio, HID, SPP, GATT
Operating System Support
- Windows: 8.1, 10, 11 (Driver-free installation)
- Linux: Compatible (Manual driver configuration may be required)
- macOS: Not supported
Supported Peripherals
- Audio Devices: Headphones, Earbuds, Speakers, Soundbars
- Input Devices: Keyboards, Mice, Trackpads, Game Controllers
- Other Devices: Printers, Smartphones, Tablets, Fitness Trackers
Power Specifications
- Power Source: USB Bus-Powered
- Power Consumption: Low Energy (BLE) Technology
- Operating Voltage: 5V DC from USB Port
Physical Specifications
- Connector Type: USB Type-A Male
- Design: Low-profile Nano Dongle
- Dimensions: Compact form factor (minimizes port obstruction)
- Weight: Lightweight portable design
Performance Features
- Transmission Technology: Enhanced Data Rate (EDR)
- Data Transfer Rate: Up to 3 Mbps
- Latency Reduction: Bluetooth 5.3 optimized protocol
- Interference Management: Adaptive Frequency Hopping (AFH)











