I recently checked the SATA specs and like the article said, the cable specs have not changed. Just have to trust your vendor to supply quality cables. On my new ASUS motherboard they shipped a few 6Gbs cables that had 90 degree plugs with the locking clips. I have been getting all my cables from MyCableMart.com
for a few years and they seem to have quality cables. I am sure there are other good vendors also.