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 Kingconn Serial ATA (Serial ATA: Serial Advanced Technology Attachment) is a computer bus that is responsible for data transmission between a motherboard and a mass storage device (such as a hard disk and a CD-ROM drive). It is mainly used for personal computers. Serial ATA is compatible with both SAS (Serial Attached SCSI) cables. The SATA hard disk can be connected to the SAS interface.

In November 2000, it was established by the "Serial ATA Working Group". The old hard drive that replaced the old PATA (Parallel ATA or formerly known as IDE) interface was named after the serial data transmission. In terms of data transmission, SATA is faster than ever and supports hot plugging so that computers can be plugged in or unplugged during operation. On the other hand, the SATA bus uses embedded clock signals and has stronger error correction capabilities than ever before. It can inspect transmission instructions (not only data), automatically correct if errors are found, and improve data transmission reliability. However, the most obvious difference between SATA and the past is the use of thinner cables, which facilitates the air flow inside the chassis, which increases the stability of the entire platform to some extent.
At present, SATA has three specifications: SATA 1.5Gbit/s, SATA 3Gbit/s, and SATA 6Gbit/s. The faster SATA Express specification was introduced in 2013.