text: I purchased 4 of these so that I could hook up my workstation's raid array in the internal back plane to an raid controller on the PCI express bus. The cables are well designed and good but they are really expensive in my opinion. However, it was the easiest technical fix to a sticky problem so I had no choice but to fork over $30 for the four cables. If you ask me they should be charging $7 for a set of 4 instead of each! That said I still gave it 5 stars because it works as advertised even if it is a point point in my wallet!