The SCR35xx USB Smart Card Reader is a hardware device designed to read and interact with smart cards through USB. It is typically used in environments where secure authentication is required, such as banking, government, or corporate settings. The device can read both contact and contactless smart cards, which are often used for tasks like two-factor authentication, secure logins, or digital signatures.

The SCR35xx Windows driver is the software required to allow your Windows computer to communicate with and use the SCR35xx USB Smart Card Reader. Without the correct driver, the reader may not be recognized by your system, or it may not function properly.