SATA is a newer technology and affords users technological advances over PATA. PATA and SATA are both types of hard drive connections. PATA stands for parallel ATA, and SATA stands for serial ATA.
As of 2014, SATA is the more common hard drive connection. SATA connections afford faster data transfer speeds than PATA. PATA allows transfer speeds of 66/100/133 megabytes per second. Comparably, SATA offers transfer speeds of 150/300/600 megabytes per second. SATA connections are physically smaller than PATA connections, which encourages airflow within a computer and reduces the amount of heat that builds up inside the system, which can increase the life of a computer.