Here's the spec:
90 degree Serial ATA
It's different from a normal right angled Sata cable in the sense that the cables have both a) been separated and shrunk by a substantial amount and b) come out of the short side/end of the cables as opposed to the larger side. As you can see in the photos, the CP11 when compared to a standard Sata cable is extremely low profile which is perfect for when using ports that are located below an expansion card. Unfortunately this has it's downsides, the main one being the hassle removing them due to their size but also as the photo's show, it is very awkward and they don't exactly come out at an angle that makes them easy to cable manage. Another thing you will notice is that to reduce the size they split the internal cables into two separate cables
If you are in need of a Sata cable this small, there really is no competition out there. The CP11B makes connecting Sata devices easy without having to think about blocking surrounding connectors or getting in the way of expansion cards. However, if you don't NEED this cable then it is both too expensive and too fragile to ever be considered as an option. Because of this unfortunately we can't see it as a viable product for the majority of the market.