SATA (SERIAL ATA) INTERFACE
SATA offers several compelling advantages over the older parallel ATA (PATA) interface: reduced cable-bulk and cost (reduced from 80 wires to seven), faster and more efficient data transfer, and hot swapping. SATA 3 standard supports up to 600MB/s.
IDE PATA (PARALLEL ATA)
IDE PATA uses underlying AT Attachment (ATA) and AT Attachment Packet Interface (ATAPI) standards. The Parallel ATA standard is the result of a long history of incremental technical development, which began with the original AT Attachment interface, developed for use in early PC AT equipment. The technology normally appears as an internal system storage interface. For many years ATA provided the most common and the least expensive interface for wide range of industrial applications.