W311MI Auto-Install adattatore USB Nano Wi-Fi 150Mbps With mini and portable exterior, the 150 Mbps W311MI driver-free adapter fits securely into your computer and has no effect on usage of neighboring ports. It contains an internal driver, which allows automatically installation as soon as it is connected to a computer. Therefore, you do not need to manually install the driver with a CD-ROM or a file downloaded from the internet. It is compatible with many operating systems to address various user requirements for wireless internet connectivity.