最近在研究一个USB KEY，设备插上之后，安装完需要的驱动，在智能卡阅读器下，出现了好几个USB Token 32 Holder的列表，有哪位高手知道此种USB的读卡器，属于何种类型的USB , 是以什么方式进行读写通讯的吗 ？

Infineon’s ID Key S USB integrates a security controller and USB bridge controller in one package, supporting a range of USB and USB/NFC token applications. Built on a high-assurance security ...

Amsterdam, The Netherlands, October 8, 2009 - Gemalto, the world leader in digital security, today announced the launch of Protiva Smart Guardian, a smart card enabled personal security USB device ...