I have an old 1 TB HDD with 250gb on it, and new 850EVO 500gb SSD. I know what you are thinking- been asked and answered 1000 times. But all of the answers I've read say to use a usb3 to sata adapter on the SSD to clone a big HDD over to a smaller SSD. Why can't you just hook up the old HDD with a sata cable and the new SSD with a second sata cable? Do you have to use a usb cable with the SSD in order to clone??