If automatic detection fails, identify the chipset via Device Manager (Windows) or System Information (macOS) and download the official driver directly from Realtek or Asix Electronic Corp . How to Install the KY-888 Driver on Windows Method 1: Plug-and-Play (Automatic Installation)
Wait 30–60 seconds for the system to recognize the device and install the built-in driver.
Open , right-click the unrecognized KY-888 device, and select Update driver . Choose Browse my computer for drivers . ky-888 usb ethernet driver
Common for USB 2.0 Fast Ethernet (10/100 Mbps) variations.
If you downloaded the driver manually (as a .zip or .rar file), extract it first. Then choose , navigate to the extracted folder, and click Next . How to Install the KY-888 Driver on macOS If automatic detection fails, identify the chipset via
Go to System Settings > Privacy & Security . Scroll down to the "Security" section. If you see a notification stating the system blocked system software from the developer, click Allow . Restart your Mac to initialize the network interface card.
Open your terminal and type lsusb to verify the system sees the ASIX controller. Choose Browse my computer for drivers
Right-click the unrecognized device (often marked with a yellow exclamation point) and choose . Navigate to the Details tab. Select Hardware Ids from the Property dropdown menu.
If your adapter came with a mini-CD, it contains the necessary installation files. If your computer lacks an optical drive, you can copy these files using another computer onto a USB flash drive.