本标准规定了主机系统和存储设备之间的AT连接接口。它提供 系统制造商、系统集成商、软件供应商、， 以及智能存储设备的供应商。它包括由 通常被称为ATAPI设备的设备。本标准与AT连接接口和数据包接口保持高度兼容性 -5（ATA/ATAPI-5），ANSI NCITS 340-2000，虽然提供了附加功能，但并不打算 要求更改当前安装的设备或现有软件。本标准的购买包括2004年6月2日出版的附录。

This standard specifies the AT Attachment Interface between host systems and storage devices. It provides a common attachment interface for systems manufacturers, system integrators, software suppliers, and suppliers of intelligent storage devices. It includes the Packet Command feature set implemented by devices commonly known as ATAPI devices.This standard maintains a high degree of compatibility with the AT Attachment Interface with Packet Interface - 5 (ATA/ATAPI-5), ANSI NCITS 340-2000, and while providing additional functions, is not intended to require changes to presently installed devices or existing software.Purchase of this standard includes theErratum published June 2, 2004.