Together, the VID and PID form a unique identifier for a USB device, often referred to as the Device ID.

Performance results for this chipset vary wildly depending on the microSD card used, as documented in various USB speed tests . Driver & Support

Looking up PID 1212 within the Super Top vendor ID reveals:

Assigned by the USB Implementers Forum (USB-IF) to a specific manufacturer. 14CD belongs to the Taiwanese company Super Top .

The USB Device ID VID 14CD PID 1212 identifies a microSD card reader typically manufactured by Moai Electronics Corporation (also listed under the vendor name DeviceHunt Device Identification Vendor ID (VID): (Moai Electronics Corp / Super Top). Product ID (PID): (microSD card reader). Common Model Name: Often sold as the microSD card reader. Product Class: USB 2.0 Mass Storage Device. DeviceHunt Technical Specifications