I use these cables to connect the I/O for the drive demo units. I needed a short cable with at least 32 conductors pre-wired with a standard connector. A very important criterion for me is accurate documentation that shows that the pin number matches the wire color. These Amphenol cables offer that at an affordable price. I cut the cables in half to get two short, pre-tinned cables that connect to the hard drive I/O. They work very well.