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Serial ATA (SATA, abbreviated from Serial AT Attachment)[2] is a computer

bus interface that connects host bus adapters to mass storage devices such as hard disk drives,

optical drives, and solid-state drives. Serial ATA succeeded the older Parallel ATA (PATA) standard,

[a] offering several advantages over the older interface: reduced cable size and cost (seven conductors instead

 of 40 or 80), native hot swapping, faster data transfer through higher signaling rates, and more efficient transfer

 through an (optional) I/O queuing protocol. Although, a number of hot plug PATA offering were first invented and marketed

 by Core International beginning in the late 1980s for the Micro Channel architecture bus controllers.