USB Device Statuses and Properties.
Each USB device available for USB Redirector has its own set of statuses and properties. USB device statuses and properties depend on whether it is situated in the Window of USB devices available for sharing or in the Window of USB devices available for connection.
Statuses of USB device available for sharing
icon means that USB device is not shared. It can be shared at any moment.
icon means that USB device is shared. Now this device is shared and available for connection by any remote computer that is connected to your computer now and depicted in the Window 1.
icon means that USB device is shared and connected. This device is already connected over local network or Internet to the remote computer.
transparent icon means that USB device is shared and physically unplugged from the computer. This device was shared earlier but now it is not plugged into your computer. As soon as USB device is plugged in your computer it will be shared automatically and will be available for connection.
yellow question-mark icon means that USB device is not identified. That means that driver software for this USB device is not installed on your system. And you can not share this device.To share such devices you need to switch USB Redirector to the auto-sharing mode. For detailed information please see USB Device Sharing without USB Device Driver Software Installing help section.
icon means that connected USB device is presented in the Exclusion List. This device can not be shared.
icon means that physically unplugged USB device is presented in the Exclusion List. This device can not be shared while connection.
Statuses of USB device available for connecting.
icon means that USB device is available for connection. It can be connected to your computer at any moment.
transparent icon means that USB device is not available for connection. This device is shared on the remote computer but now it is not physically plugged in it. As soon as USB device is plugged in the computer it will be available for connection.
icon means that USB device is occupied. This device is shared on the remote computer and is already connected to the other remote computer. You can connect this device only after it will be released by the remote computer.
icon means that USB device is presented in the Exclusion List. This device can not be connected to your computer.
icon means that physically unplugged USB device is presented in the Exclusion List. Currently this device is not plugged to the computer and it can not be connected to your computer when it becomes available for connection.
Window 3 contains more detailed information about chosen USB device.

It contains:
device description;
Hardware Identificator;
short description of chosen USB device status.
USB devices available for connection (Window 2) possess additional property: "connect USB device automatically when it becomes available". Parameters of this property is depicted in the Window 4. Here you can see checkbox where you can tick off if you wish to switch USB device to the mode "connect USB device automatically when it becomes available" or to remove USB device from this mode.
The differences between Change Mode and Save Mode for changing USB device properties.
Change Mode changes the properties of the chosen USB device ONLY! That means if you are going to connect two equal USB devices (with the same Hardware ID) the changed properties will be applied to the chosen USB device ONLY!
To save changes of the property "connect USB device automatically when it becomes available" even after you unplugged USB device from the computer where it is shared, you need to use Save Mode.