Download the .cab file corresponding to your system architecture (x86 or x64). ⚙️ How to Install the Driver
Microsoft removed native RT3090 support after Windows 8.1. Here is the manual installation method that works for the on modern Windows.
The Ralink RT3090BC4 v20a is a legacy wireless adapter that can still work under the right conditions, but it requires patience and careful driver selection. For Windows 7 and earlier versions of Windows 10, reliable drivers exist and installation is straightforward. For Windows 11 and modern Linux systems, expect to encounter compatibility hurdles that may or may not be surmountable.
There is no official Ralink driver page anymore. MediaTek's website may have legacy drivers in some regions, but most older links return 404 errors. Your best bet is the Microsoft Update Catalog or your laptop manufacturer's support site.
. Often found in HP and ProBook laptops (HP Spare: 602992-001), it is designed as a Half MiniCard for space-constrained mobile platforms. OCTOPART.ru Key Hardware Features Dual-Functionality
Which and version (e.g., Windows 10 64-bit, Ubuntu 24.04) are you using?
Reboot, and the card should show up.
Ralink Technology Corporation was acquired by MediaTek, which refocused on newer chipsets. Legacy products like the RT3090 series have been officially discontinued. The original driver downloads were removed from Ralink's servers years ago, leaving only third-party archives and manufacturer-specific versions.
Although less common, some users have reported attempting to get the Ralink RT3090 working with Mac OS. A Ralink USB driver software package designed to help use Ralink wireless devices with Mac computers exists, but native macOS driver support is minimal at best.