9710:7810 — MCS7810 Serial Port Adapter (MosChip Semiconductor)

What is this device?

This is the USB identifier for a MCS7810 Serial Port Adapter manufactured by MosChip Semiconductor. The vendor ID 9710 is registered to MosChip Semiconductor with the USB Implementers Forum, and 7810 is the product ID that MosChip Semiconductor assigned to this particular model. When you run lsusb on Linux, this device appears as 9710:7810 MosChip Semiconductor MCS7810 Serial Port Adapter.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 9710:7810 MosChip Semiconductor MCS7810 Serial Port Adapter

You can filter directly with lsusb -d 9710:7810, or get the full descriptor dump with lsusb -v -d 9710:7810. Kernel messages from dmesg show the same pair as idVendor=9710, idProduct=7810.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_9710&PID_7810
USB\VID_9710&PID_7810&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_9710&PID_7810"

macOS

$ system_profiler SPUSBDataType
    MCS7810 Serial Port Adapter:
      Product ID: 0x7810
      Vendor ID: 0x9710  (MosChip Semiconductor)

Driver help

Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.

Raw usb.ids entry

The exact lines this page is generated from, in the upstream source file:

9710  MosChip Semiconductor
	7810  MCS7810 Serial Port Adapter

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