Corechip Semiconductor Usb To Ethernet Driver Windows 11 Top Jun 2026

The and SR9900A are the most common chips in 100Mbps USB Ethernet adapters produced in recent years. This chip is a high-integration USB 2.0 to 10/100M Fast Ethernet controller. If you purchased a simple plastic adapter with an RJ45 port and a USB-A or USB-C connector within the last five years, there is a high probability it runs on an SR9900 chipset.

The Corechip SR9900 appears as a hidden device. Solution: Go to Device Manager, click View > Show hidden devices . The adapter should then appear for troubleshooting.

Right-click the Start menu and select Device Manager .

If the driver is installed but the device is still not working properly: corechip semiconductor usb to ethernet driver windows 11 top

In the era of ultra-thin laptops and tablets, many manufacturers have ditched the traditional RJ45 Ethernet port in favor of wireless connectivity. This has led to a massive market for USB-to-Ethernet adapters. Among the most common—and often most confusing—chips found in these affordable adapters is the chip (often branded as Corechip RD9700).

Many users overlook that , but they are not installed automatically.

CoreChip Semiconductor is a reputable manufacturer of USB to Ethernet adapters, offering a range of products that cater to different needs and budgets. Their USB to Ethernet adapters are designed to provide a fast and reliable internet connection, with speeds of up to 1000 Mbps. CoreChip Semiconductor adapters are compatible with various operating systems, including Windows 11. The and SR9900A are the most common chips

If manual installation fails with "The hash for the file is not present," you must install it as Legacy Hardware.

Before diving into drivers, it is important to understand the hardware. Corechip Semiconductor (often associated with the model number ) is a manufacturer of low-cost USB 2.0 to Fast Ethernet bridge chips.

The is an older chipset that remains in heavy circulation due to its low cost. It is often associated with Hardware IDs like vid_0fe6&pid_9700 . It supports USB 2.0 and 10/100Mbps speeds. Interestingly, while it is an older chip, it maintains a surprisingly strong compatibility with modern systems, including Windows 11, provided the correct legacy drivers are used. The Corechip SR9900 appears as a hidden device

Before downloading anything, you need to know exactly which "Corechip" you have. Right-click the Start button and select Device Manager Other Devices Network Adapters

Last updated: May 2026

Go to the CoreChip Shenzhen website → Support → Download → Look for “SR9900 Windows 11 Driver” or “USB2.0 To Fast Ethernet Adapter” .

Outcome: Your Ethernet should work instantly.

If you are looking for the (Gigabit, Wake-on-LAN, low latency), you should invest $15-$20 in an adapter using the Realtek RTL8153 or ASIX AX88179 chipset. These have native Windows 11 drivers built-in.