"Oker" is a generic/budget brand often sold on Amazon, eBay, or AliExpress. The U-706 typically uses a Realtek chipset (e.g., RTL8188, RTL8812, or RTL8821). Installing the wrong driver can cause issues.
It looks like you're looking for a driver for (likely a USB Wi-Fi adapter or other peripheral). Oker U-706 Driver Download