Ugreen UG-90339 AC650 High Gain Dual Band Wireless Adapter

The Ugreen UG-90339 delivers wireless network connectivity for desktop computers and laptops through USB interface. This dual-band adapter provides WiFi access across both 2.4GHz and 5GHz frequency bands with enhanced signal reception capabilities.

AC650 Wireless Performance Standards

The UG-90339 supports 802.11ac WiFi technology with combined theoretical maximum speeds of 650Mbps. This performance rating divides across the two supported frequency bands based on network conditions and connected infrastructure.

On the 5GHz band, the adapter achieves speeds up to 433Mbps under optimal conditions. Meanwhile, the 2.4GHz band delivers up to 200Mbps maximum throughput. These dual-band capabilities enable users to select appropriate frequencies based on range requirements and interference conditions.

Dual-Band Frequency Operation

The adapter operates simultaneously across 2.4GHz and 5GHz wireless bands. This dual-band architecture provides flexibility for diverse network environments and application requirements.

The 2.4GHz frequency offers extended range and superior wall penetration characteristics. Therefore, this band proves advantageous for connections through multiple rooms or floors. Conversely, the 5GHz band delivers higher speeds with reduced interference from neighboring networks, household appliances, and Bluetooth devices.

High-Gain Antenna Configuration

The Ugreen UG-90339 incorporates a high-gain external antenna for enhanced signal reception and transmission. This antenna design improves wireless range compared to internal antenna configurations found in standard USB adapters.

Furthermore, the antenna features adjustable positioning for directional signal optimization. Users can rotate and angle the antenna toward wireless access points or routers to maximize signal strength. This adjustability proves particularly valuable in environments with physical obstructions or significant distances between the adapter and wireless infrastructure.

USB 3.0 Interface Integration

The adapter utilizes a USB 3.0 Type-A connector for high-speed data transfer between the wireless controller and host system. USB 3.0 provides sufficient bandwidth to support the adapter’s 650Mbps combined wireless throughput without interface bottlenecks.

Additionally, USB 3.0 maintains backward compatibility with USB 2.0 ports on older systems. However, connection to USB 2.0 ports may limit overall throughput due to the 480Mbps maximum speed limitation of the USB 2.0 standard. For optimal performance, connection to USB 3.0 or newer ports is recommended.

WPA3 Security Protocol Support

The UG-90339 implements WPA3 wireless security encryption, representing the latest WiFi security standard. This protocol provides enhanced protection against password guessing attacks and unauthorized network access compared to earlier WPA2 implementations.

Moreover, the adapter maintains backward compatibility with WPA2, WPA, and WEP security protocols. This comprehensive security support ensures connectivity across diverse network configurations, from legacy systems requiring older protocols to modern networks implementing current security standards.

Operating System Compatibility

The adapter provides driver support for Windows 10 and Windows 11 operating systems. Installation typically proceeds through downloadable driver packages from Ugreen’s support resources or included installation media.

Similarly, the UG-90339 supports various Linux distributions through kernel drivers or manufacturer-provided packages. macOS compatibility may vary based on chipset driver availability and operating system version. Users should verify macOS support through Ugreen’s documentation before purchase for Apple system deployments.

Beamforming Technology Implementation

The adapter incorporates beamforming technology for directional signal transmission. This feature focuses wireless signals toward connected devices rather than broadcasting omnidirectionally.

Consequently, beamforming improves connection stability and throughput by concentrating signal strength along the transmission path to the wireless router or access point. This technology proves particularly beneficial in environments with signal interference or at extended ranges approaching maximum coverage limits.

MU-MIMO Capability

The UG-90339 supports Multi-User Multiple-Input Multiple-Output (MU-MIMO) technology when connected to compatible routers. This feature enables simultaneous data transmission to multiple devices without sequential processing delays.

Therefore, MU-MIMO reduces latency and improves overall network efficiency in multi-device environments. However, full MU-MIMO benefits require wireless infrastructure supporting this technology on the access point or router side.

Plug-and-Play Installation Process

The adapter implements streamlined installation procedures on supported operating systems. Users connect the UG-90339 to available USB ports and install provided drivers through standard installation wizards.

Furthermore, some operating systems may recognize the adapter automatically through generic wireless drivers. However, manufacturer-specific drivers typically provide access to advanced features and optimal performance characteristics not available through generic driver implementations.

Low-Profile USB Extension Cable

The package includes a USB extension cable for flexible adapter positioning. This cable enables users to relocate the adapter away from system chassis for improved signal reception.

Additionally, the extension cable proves valuable for rear-panel USB port connections where direct adapter installation may position the antenna unfavorably. Users can place the adapter on desktops or elevated positions to minimize physical obstructions between the antenna and wireless infrastructure.

LED Status Indicator

The adapter incorporates an LED indicator for visual connection status monitoring. This indicator typically displays power state and wireless connection activity through illumination patterns or color changes.

Visual feedback enables rapid troubleshooting and connection verification without accessing software utilities. The LED remains visible during operation, facilitating connection monitoring during initial setup and ongoing use.

General Specifications

• Model Number: Ugreen UG-90339
• Product Type: USB Wireless Network Adapter
• Wireless Standard: IEEE 802.11ac (WiFi 5)
• Form Factor: USB Dongle with External Antenna

Wireless Performance

• Maximum Combined Speed: 650Mbps (AC650)
• 5GHz Band Speed: Up to 433Mbps
• 2.4GHz Band Speed: Up to 200Mbps
• Frequency Bands: Dual-band (2.4GHz and 5GHz)
• Operating Mode: Simultaneous dual-band operation

Wireless Standards Support

• 802.11ac: WiFi 5 (primary standard)
• 802.11n: WiFi 4 (backward compatible)
• 802.11g: 2.4GHz legacy support
• 802.11b: 2.4GHz legacy support
• 802.11a: 5GHz legacy support

Physical Interface

• Connector Type: USB 3.0 Type-A
• USB Standard: USB 3.0 (backward compatible with USB 2.0)
• Antenna Type: External high-gain adjustable antenna
• Antenna Gain: High-gain design (specific dBi rating varies)
• Antenna Adjustment: 180-degree rotation capability

Advanced Wireless Features

• Beamforming: Directional signal transmission
• MU-MIMO: Multi-User MIMO support (router-dependent)
• Channel Width: 20/40MHz (2.4GHz), 20/40/80MHz (5GHz)
• Modulation: OFDM, CCK, DBPSK, DQPSK, BPSK, QPSK, 16-QAM, 64-QAM, 256-QAM

Security Protocols

• WPA3: Latest wireless security standard
• WPA2-PSK: Advanced encryption
• WPA-PSK: Legacy WPA support
• WEP: Legacy encryption (not recommended)
• Encryption Types: AES, TKIP, 64-bit/128-bit WEP

Operating System Compatibility

• Windows: 10, 11 (32-bit and 64-bit)
• Linux: Compatible with kernel drivers (distribution-dependent)
• macOS: Verify compatibility with specific versions
• Driver Type: Downloadable from manufacturer or included media

Power Specifications

• Power Source: USB bus-powered
• Power Consumption: Typical USB adapter power draw
• Operating Voltage: 5V DC from USB port
• Power Saving: IEEE 802.11 power management support

Physical Specifications

• Adapter Dimensions: Compact USB dongle design
• Antenna Length: Extended length for improved reception
• Cable: USB extension cable included
• Extension Cable Length: Varies (typically 0.5m to 1m)
• Weight: Lightweight portable design

Performance Characteristics

• Range: Extended range via high-gain antenna
• Signal Strength: Enhanced reception and transmission
• Throughput: Near-theoretical speeds under optimal conditions
• Latency: Low-latency operation on 5GHz band