04d8:00dd — MCP2221(a) UART/I2C Bridge
Microchip Technology, Inc.
- Vendor ID
- 04d8
- Product ID
- 00dd
- Combined
- 04d8:00dd
- Decimal
- 1240:221
What is this device?
This is the USB identifier for a MCP2221(a) UART/I2C Bridge manufactured by Microchip Technology, Inc.. The vendor ID 04d8 is registered to Microchip Technology, Inc. with the USB Implementers Forum, and 00dd is the product ID that Microchip Technology, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 04d8:00dd Microchip Technology, Inc. MCP2221(a) UART/I2C Bridge.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 04d8:00dd Microchip Technology, Inc. MCP2221(a) UART/I2C Bridge
You can filter directly with lsusb -d 04d8:00dd, or get the full descriptor dump with lsusb -v -d 04d8:00dd. Kernel messages from dmesg show the same pair as idVendor=04d8, idProduct=00dd.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_04D8&PID_00DD USB\VID_04D8&PID_00DD&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_04D8&PID_00DD"
macOS
$ system_profiler SPUSBDataType
MCP2221(a) UART/I2C Bridge:
Product ID: 0x00dd
Vendor ID: 0x04d8 (Microchip Technology, Inc.)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:
04d8 Microchip Technology, Inc. 00dd MCP2221(a) UART/I2C Bridge