ABB G3EFa HENF450295R2是一种典型的直接附加存储（DAS）系统的配置。在这种系统中，数据存储装置（例如大量硬式磁盘驱动器）直接连接到计算机主机总线适配器（HBA）。没有网络设备（如集线器、交换机或路由器）介入，这是DAS的主要特点。主要的连接协议用于DAS的有航空运输协会、萨塔（人名）、埃萨塔、NVMe、小型计算机系统接口、斯堪的纳维亚航空公司、通用串行总线、USB 3.0和IEEE 1394。

It is a typical configuration of Direct Attached Storage (DAS) systems. In this system, data storage devices (such as a large number of hard disk drives) are directly connected to the computer host bus adapter (HBA). The main characteristic of DAS is that there are no network devices (such as hubs, switches, or routers) involved. The main connection protocols used for DAS include the Air Transport Association, Sata (personal name), Isata, NVMe, Small Computer System Interface, Scandinavian Airlines, Universal Serial Bus, USB 3.0, and IEEE 1394.