yep. Parallel ATA. The difference is the cable: PATA uses 80-conductor cable, SATA only 4. PATA supports 2 drives per cable (master and slave), SATA only 1. PATA cables are clumsy and can obstruct the airflow in your computer. PATA cables are max. 17 inches long, SATA much longer (I'm no sure how much, I think about 1.5 meter). SATA drives are hot-swappable (I think, but I have no experience with this). Bandwith of SATA is higher than PATA, which also has to share the bandwith with 2 devices, but PATA bandwith is sufficient to accomodate 2 of the fastest drives currently available.