Ugreen UG-20204 AC650 11ac Dual-Band Wireless USB Adapter

The UGREEN UG-20204 delivers efficient wireless connectivity through AC650 dual-band technology. This compact USB adapter supports simultaneous 2.4GHz and 5GHz frequency operations. The device provides 200Mbps on the 2.4GHz band and 433Mbps on the 5GHz band. The ultra-compact design ensures portability and convenient storage.

Efficient Dual-Band Wireless Technology

The UG-20204 implements 802.11ac wireless standard for improved network performance. The adapter automatically switches between frequency bands based on network conditions. Users gain access to less congested 5GHz networks for bandwidth-intensive activities. The 2.4GHz band maintains compatibility with older routers and extends coverage range. Meanwhile, the 5GHz band reduces interference from household devices like microwaves and Bluetooth equipment.

The adapter maintains backward compatibility with 802.11n/g/b standards. This ensures connectivity across diverse network environments. The device negotiates optimal connection protocols automatically without user intervention.

Ultra-Compact and Portable Design

This wireless adapter features a nano-sized form factor for maximum portability. The compact housing measures smaller than traditional USB adapters. Users can leave the UG-20204 permanently connected without obstruction concerns. The low-profile design protects the adapter from accidental damage during transport.

The device connects via USB 2.0 interface for universal compatibility. The interface provides sufficient bandwidth for AC650 wireless speeds. Users experience reliable performance across desktop computers and laptops alike.

Simple Installation and Setup

The adapter offers plug-and-play functionality on Windows 10 and Windows 11 systems. No driver installation is required for these operating systems. Other platforms including Windows 8.1/8/7 and macOS require driver installation. The UGREEN website provides downloadable drivers for all supported operating systems.

The UG-20204 supports both 32-bit and 64-bit system architectures. This compatibility covers virtually all modern computing devices. The installation process completes within minutes on all supported platforms.

Reliable Security and Performance

The adapter implements WPA/WPA2 encryption protocols for secure wireless communications. It prevents unauthorized network access and protects data transmission. The device supports infrastructure mode for connecting to standard wireless routers. Ad-hoc mode enables direct device-to-device connections without access points.

The UGREEN UG-20204 maintains stable connections during continuous operation. The adapter automatically reconnects after system sleep or hibernation. Users experience consistent performance during extended usage sessions.

Technical Specifications

Wireless Standards

• IEEE 802.11ac/a/b/g/n
• Dual-band operation (2.4GHz and 5GHz)
• Backward compatible with 802.11n/g/b devices

Performance

• 2.4GHz band: up to 200Mbps
• 5GHz band: up to 433Mbps
• Combined maximum speed: 650Mbps (AC650)
• 1T1R (1 transmit, 1 receive antenna)

Antenna

• Internal antenna design
• Omnidirectional radiation pattern
• Optimized for compact form factor

Interface

• USB 2.0 Type-A connector
• Hot-swappable support
• Bus-powered (no external power required)
• Plug-and-play on Windows 10/11

Security

• WPA-PSK/WPA2-PSK encryption
• WPA/WPA2 authentication
• 64/128-bit WEP encryption
• WPS (WiFi Protected Setup) support

Operating System Compatibility

• Windows 11/10 (plug-and-play)
• Windows 8.1/8/7 (32-bit and 64-bit)
• macOS 10.9 and later
• Driver download available from UGREEN website

Network Modes

• Infrastructure (BSS) mode
• Ad-hoc (IBSS) mode
• Soft AP mode capability

Chipset

• Realtek RTL8811CU or equivalent
• Single-band single-concurrent operation

Physical Specifications

• Dimensions: Approximately 18mm × 15mm × 7mm (nano size)
• Weight: Approximately 2g
• Color: Black
• Form factor: Ultra-compact nano design

Operating Conditions

• Operating temperature: 0°C to 40°C (32°F to 104°F)
• Storage temperature: -40°C to 70°C (-40°F to 158°F)
• Operating humidity: 10% to 90% non-condensing
• Storage humidity: 5% to 95% non-condensing

Power Consumption

• Transmit mode: Maximum 300mA @ 5V
• Receive mode: Approximately 200mA @ 5V
• Standby mode: Less than 30mA @ 5V

LED Indicator

• Single status LED
• Indicates power and connection activity
• Blue light for active connection