Ugreen 90339 AC650 Wireless Network Card

Ugreen 90339 AC650 Wireless Network Card

Upgrade your desktop or laptop with fast and reliable wireless connectivity using the Ugreen AC650 90339 Wireless Network Card. This compact USB WiFi adapter delivers dual-band performance, stronger signal reception, and stable internet speeds — making it ideal for homes, offices, and gaming setups.

Dual-Band AC650 WiFi Performance

The Ugreen AC650 adapter supports 802.11ac wireless technology and operates on both 2.4GHz and 5GHz bands, letting you choose between wider coverage or higher speed depending on your needs.

• 5GHz band: Up to 433 Mbps for HD streaming, gaming, and video calls
• 2.4GHz band: Up to 200 Mbps for browsing and everyday use

High-Gain External Antenna

Equipped with a 6dBi external antenna, this wireless network card offers enhanced signal penetration and wider coverage compared to built-in laptop WiFi modules. The antenna can be adjusted to improve reception in weak signal areas, which is especially useful for desktop PCs placed far from the router.

Plug-and-Play USB Installation

The adapter connects via USB 2.0 and includes driver support for easy setup on most compatible systems, including Windows and Linux, as well as desktops without built-in WiFi and older laptops needing a wireless upgrade.

Security

The adapter supports WPA/WPA2-PSK and WEP 64/128-bit encryption to help protect your data while browsing, working, or streaming online.

Key Specifications

• Model: Ugreen 90339 (AC650)
• WiFi Standard: IEEE 802.11ac/a/b/g/n
• Speed Rating: AC650
• Frequency Bands: 2.4GHz & 5GHz
• Max Speed: 433 Mbps (5GHz), 200 Mbps (2.4GHz)
• Antenna: External 6dBi high-gain
• Interface: USB 2.0
• Chipset: RTL8811CU
• Security: WPA/WPA2, WEP
• Operating Systems: Windows, Linux

Frequently Asked Questions

Can this adapter add WiFi to a desktop PC without built-in wireless? Yes, it instantly enables wireless connectivity via USB, making it ideal for desktops.

Is it suitable for online gaming and HD streaming? Yes, the 5GHz band provides low latency and high speed for gaming and streaming.

Does it support both 2.4GHz and 5GHz routers? Yes, it automatically connects to either band depending on availability.

Is driver installation required? Most systems support plug-and-play installation with built-in drivers.

Can the antenna be adjusted? Yes, the external antenna can be rotated for better signal reception.