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虽然并行接口(例如:台式电脑采用的PCI总线、Parallel ATA和企业硬盘机所采用的SCSI)是一项几经验证的技术,且构造简单、成本较低且使用方便,曾雄踞了个人电脑周边市场的相当长时间;但其仍存在一些限制,包括效能、设备寻址能力、讯号完整性、传输线距离、不兼容于新式硅芯片制程,以及不利于电脑空间利用等,于是“串行”的接口便应运而生;特别是SATA与正在发展中的SAS(SerialAttached SCSI),更被视为传统储存接口的接班人,成为新一代储存接口规格的新宠。
Although parallel interfaces such as the SCSI bus used by desktop PCs, Parallel ATA, and SCSI used by enterprise hard disk drives are proven technologies that are simple, inexpensive, and easy to use, they have dominated the perimeter of personal computers The market is quite long; however, there are still some limitations, including performance, device addressing capability, signal integrity, transmission line distance, incompatibility with the new silicon process, and adversely affecting computer space utilization. Thus, “serial” Interface came into being; especially SATA and SAS (SerialAttached SCSI) is more and more regarded as the successor of the traditional storage interface, becoming the new darling of the new generation of storage interface specifications.