9710:9990 — MCS9990 PCIe Host Controller
MosChip Semiconductor
- Vendor ID
- 9710
- Product ID
- 9990
- Combined
- 9710:9990
- Decimal
- 38672:39312
What is this device?
This is the USB identifier for a MCS9990 PCIe Host Controller manufactured by MosChip Semiconductor. The vendor ID 9710 is registered to MosChip Semiconductor with the USB Implementers Forum, and 9990 is the product ID that MosChip Semiconductor assigned to this particular model. When you run lsusb on Linux, this device appears as 9710:9990 MosChip Semiconductor MCS9990 PCIe Host Controller.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 9710:9990 MosChip Semiconductor MCS9990 PCIe Host Controller
You can filter directly with lsusb -d 9710:9990, or get the full descriptor dump with lsusb -v -d 9710:9990. Kernel messages from dmesg show the same pair as idVendor=9710, idProduct=9990.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_9710&PID_9990 USB\VID_9710&PID_9990&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_9710&PID_9990"
macOS
$ system_profiler SPUSBDataType
MCS9990 PCIe Host Controller:
Product ID: 0x9990
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 9990 MCS9990 PCIe Host Controller