You can use up to two USB devices in your virtual machine if both your host operating system and your guest operating system support USB. VMware Workstation 4 provides a two-port USB 1.1 controller. Disconnecting USB Devices from a Virtual Machine.Replacing USB 2.0 Drivers on a Windows 2000 Host.Enabling and Disabling the USB Controller.The following sections describe how to use USB devices in a virtual machine: Features | Documentation | Knowledge Base | Discussion Forums