The RD9700 is a popular and affordable chipset from CoreChip Semiconductor. It's designed to add a 10/100 Mbps Fast Ethernet port to any computer via a USB 2.0 connection. It is frequently found in USB-to-Ethernet adapters sold under many different brand names, such as , QTS1081B , JP1081B, and SR9700. The chipset is supported on a wide range of operating systems, including Windows, macOS, and Linux, which contributes to its popularity among users who need a reliable and cost-effective wired internet solution. While it has been around for many years, it continues to be manufactured and used in new products.
: If you download a .zip file, extract it to a dedicated folder on your desktop.
The following sources provide driver versions reported to be compatible with Windows 11 64-bit: The RD9700 is a popular and affordable chipset
Alternatively, check community-maintained sources like GitHub for legacy files. : Most downloads come as a .zip file. Right-click and Extract All to a folder on your desktop. Open Device Manager : Right-click the Start button and select Device Manager .
: The device connects but drops packets or completely disconnects under heavy network load. The chipset is supported on a wide range
Once you have downloaded the driver file, follow these steps to install it on your Windows 11 computer.
When you plug the RD9700 adapter into a Windows 11 machine, one of three things typically happens: The following sources provide driver versions reported to
This adapter is especially useful for:
If Windows 11 blocks the driver from running due to a "Memory Integrity" conflict: Open -> Device Security . Click on Core isolation details . Toggle Memory integrity to Off . Restart your PC and attempt the driver installation again. Fixing "Device Cannot Start (Code 10)"