Keil Software, Inc. — USB Vendor ID c251

Keil Software, Inc. is a USB vendor registered under ID c251. Below are the 3 known USB devices published under this vendor ID in the upstream usb.ids database. Any device from this manufacturer will report c251 as the first half of its VID:PID pair, so if your system shows c251:???? the hardware was built by Keil Software, Inc..