Corechip Semiconductor RD9700 (often identified by Hardware ID USB\VID_0FE6&PID_9700 Operating Systems: Supports Windows 7, 8, 8.1, 10, and 11 (32-bit and 64-bit).
| | Cons | | :--- | :--- | | Cost: Extremely cheap hardware ($5-$10). | Speed: Capped at 100 Mbps (Not Gigabit). | | Portability: Small form factor. | Heat: The RD9700 chip runs hot; the adapter gets warm to the touch. | | Stability: Driver, once working, is reliable. | Driver Source: No official manufacturer support; must trust 3rd party downloads. | | Legacy Support: Great for older laptops without Ethernet ports. | Security: Installers often lack digital signatures. |
The is commonly associated with a budget USB 2.0 to Fast Ethernet (10/100 Mbps) adapter often identified in system logs by the Hardware ID USB\VID_0FE6&PID_9700 . The "21" in your query likely refers to the common driver version 1.0.921.0 , which was released on September 21, 2010 . Key Specifications & Hardware Identification jp1081b usb lan driver 21
Table_content: header: | Platform | Important Notes | Date | Version and Download | row: | Platform: Windows 11 | Important Notes: Plugable Technologies USB RJ45 LAN ADAPTER | QTS1081B
: On modern systems like Windows 10/11, these adapters are often plug-and-play . Windows may automatically download the necessary drivers through Windows Update . Manual Installation (Windows) : Open Device Manager by right-clicking the Start button. | | Portability: Small form factor
Leave a comment below with your Hardware ID (from Device Manager) and Windows build number. The community often finds specific INF tweaks for stubborn adapters.
Plug in the adapter, then on Windows open Device Manager → Network adapters . Look for a name containing “AX88179”, “Realtek USB GbE”, etc. That’s your real chipset. | Driver Source: No official manufacturer support; must
We tested the adapter on a Dell XPS 13 (Windows 11 Pro, USB 3.0 port, Cat 6 cable, Gigabit router).
This method allows you to download the specific .inf driver package needed for the VID_0FE6&PID_9700 device.