Windows 7 Computer wont recognise Ultra II in USB caddy (Also no Mac support)

if the drive is new it will be unpartioned so Win 7 will not show it as a disk. you can check disk management to see if the drive is seen by the computer. it should show up an a drive with no drive letter and unallocated for the storage. 

if it is seen by the computer in disk management and the dashboard is not seeing it it is possible the USB doc you are suing is not passing the drive information through from the drive to the computer. if this is the case you would need a different USB cable or doc before the drive will be seen by the dashboard. 

I am in the US and just checked sandisk chat and it is working and support is available. if you are having issues connecting try giving them a call. 866-SANDISK