Take the statement "THIS IS NOT A GUARANTEE OF SAFETY" as a STRONG warning. I have burnt up a harddrive and the cable in an A1200 when hooking it up backwards. Keep in mind that the 2.5" drives have power running through some of those wires. If you get them backwards it can cause bad bad things. Now... if we were talking about 3.5" drives I also have never damaged one by hooking up the cable backwards.